Home / 20,806,904.52-28,712,373.30-11,637,775.80

Finding the Fourth Proportional to 20,806,904.52, 28,712,373.30 and 11,637,775.80

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Solution

The fourth proportional to 20,806,904.52, 28,712,373.30 and 11,637,775.80 is: 16,059,484.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,904.52 : 28,712,373.30 = 11,637,775.80 : x
  2. Step 2: Convert to fraction form
    20,806,904.52/28,712,373.30 = 11,637,775.80/x
  3. Step 3: Cross multiply
    20,806,904.52x = 28,712,373.30 × 11,637,775.80
  4. Step 4: Simplify right side
    20,806,904.52x = 334,148,163,151,306.19
  5. Step 5: Solve for x
    x = 334,148,163,151,306.19/20,806,904.52
  6. Step 6: Final answer
    x = 16,059,484.62

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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.