Home / 28,724,130.79-39,639,244.32-15,671,398.55

Finding the Fourth Proportional to 28,724,130.79, 39,639,244.32 and 15,671,398.55

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Solution

The fourth proportional to 28,724,130.79, 39,639,244.32 and 15,671,398.55 is: 21,626,499.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724,130.79 : 39,639,244.32 = 15,671,398.55 : x
  2. Step 2: Convert to fraction form
    28,724,130.79/39,639,244.32 = 15,671,398.55/x
  3. Step 3: Cross multiply
    28,724,130.79x = 39,639,244.32 × 15,671,398.55
  4. Step 4: Simplify right side
    28,724,130.79x = 621,202,395,761,347.50
  5. Step 5: Solve for x
    x = 621,202,395,761,347.50/28,724,130.79
  6. Step 6: Final answer
    x = 21,626,499.35

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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.