Home / 28,904,417.28-39,885,926.40-15,849,584.64

Finding the Fourth Proportional to 28,904,417.28, 39,885,926.40 and 15,849,584.64

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Solution

The fourth proportional to 28,904,417.28, 39,885,926.40 and 15,849,584.64 is: 21,871,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,904,417.28 : 39,885,926.40 = 15,849,584.64 : x
  2. Step 2: Convert to fraction form
    28,904,417.28/39,885,926.40 = 15,849,584.64/x
  3. Step 3: Cross multiply
    28,904,417.28x = 39,885,926.40 × 15,849,584.64
  4. Step 4: Simplify right side
    28,904,417.28x = 632,175,366,421,610.50
  5. Step 5: Solve for x
    x = 632,175,366,421,610.50/28,904,417.28
  6. Step 6: Final answer
    x = 21,871,237.20

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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.