Home / 28,679,129.55-39,577,204.47-15,626,388.46

Finding the Fourth Proportional to 28,679,129.55, 39,577,204.47 and 15,626,388.46

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Solution

The fourth proportional to 28,679,129.55, 39,577,204.47 and 15,626,388.46 is: 21,564,419.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679,129.55 : 39,577,204.47 = 15,626,388.46 : x
  2. Step 2: Convert to fraction form
    28,679,129.55/39,577,204.47 = 15,626,388.46/x
  3. Step 3: Cross multiply
    28,679,129.55x = 39,577,204.47 × 15,626,388.46
  4. Step 4: Simplify right side
    28,679,129.55x = 618,448,771,209,068.38
  5. Step 5: Solve for x
    x = 618,448,771,209,068.38/28,679,129.55
  6. Step 6: Final answer
    x = 21,564,419.18

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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.