Home / 6,390,128,040.40-8,818,207,538.08-3,570,759,133.66

Finding the Fourth Proportional to 6,390,128,040.40, 8,818,207,538.08 and 3,570,759,133.66

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Solution

The fourth proportional to 6,390,128,040.40, 8,818,207,538.08 and 3,570,759,133.66 is: 4,927,553,080.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390,128,040.40 : 8,818,207,538.08 = 3,570,759,133.66 : x
  2. Step 2: Convert to fraction form
    6,390,128,040.40/8,818,207,538.08 = 3,570,759,133.66/x
  3. Step 3: Cross multiply
    6,390,128,040.40x = 8,818,207,538.08 × 3,570,759,133.66
  4. Step 4: Simplify right side
    6,390,128,040.40x = 31,487,695,109,108,621,312
  5. Step 5: Solve for x
    x = 31,487,695,109,108,621,312/6,390,128,040.40
  6. Step 6: Final answer
    x = 4,927,553,080.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.