Home / 1,008,935,381.20-1,513,403,071.80-619,495,416.40

Finding the Fourth Proportional to 1,008,935,381.20, 1,513,403,071.80 and 619,495,416.40

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Solution

The fourth proportional to 1,008,935,381.20, 1,513,403,071.80 and 619,495,416.40 is: 929,243,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,935,381.20 : 1,513,403,071.80 = 619,495,416.40 : x
  2. Step 2: Convert to fraction form
    1,008,935,381.20/1,513,403,071.80 = 619,495,416.40/x
  3. Step 3: Cross multiply
    1,008,935,381.20x = 1,513,403,071.80 × 619,495,416.40
  4. Step 4: Simplify right side
    1,008,935,381.20x = 937,546,266,145,779,968
  5. Step 5: Solve for x
    x = 937,546,266,145,779,968/1,008,935,381.20
  6. Step 6: Final answer
    x = 929,243,124.60

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Similar ratio
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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.