Home / 28,063,681.50-38,727,880.47-15,186,625.50

Finding the Fourth Proportional to 28,063,681.50, 38,727,880.47 and 15,186,625.50

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Solution

The fourth proportional to 28,063,681.50, 38,727,880.47 and 15,186,625.50 is: 20,957,543.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063,681.50 : 38,727,880.47 = 15,186,625.50 : x
  2. Step 2: Convert to fraction form
    28,063,681.50/38,727,880.47 = 15,186,625.50/x
  3. Step 3: Cross multiply
    28,063,681.50x = 38,727,880.47 × 15,186,625.50
  4. Step 4: Simplify right side
    28,063,681.50x = 588,145,817,106,654
  5. Step 5: Solve for x
    x = 588,145,817,106,654/28,063,681.50
  6. Step 6: Final answer
    x = 20,957,543.19

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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.