Home / 1,008,935,387.20-1,513,403,080.80-619,495,422.40

Finding the Fourth Proportional to 1,008,935,387.20, 1,513,403,080.80 and 619,495,422.40

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Solution

The fourth proportional to 1,008,935,387.20, 1,513,403,080.80 and 619,495,422.40 is: 929,243,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,935,387.20 : 1,513,403,080.80 = 619,495,422.40 : x
  2. Step 2: Convert to fraction form
    1,008,935,387.20/1,513,403,080.80 = 619,495,422.40/x
  3. Step 3: Cross multiply
    1,008,935,387.20x = 1,513,403,080.80 × 619,495,422.40
  4. Step 4: Simplify right side
    1,008,935,387.20x = 937,546,280,801,657,216
  5. Step 5: Solve for x
    x = 937,546,280,801,657,216/1,008,935,387.20
  6. Step 6: Final answer
    x = 929,243,133.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.