Home / 21,234,701.29-31,778,863.93-13,031,898.52

Finding the Fourth Proportional to 21,234,701.29, 31,778,863.93 and 13,031,898.52

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Solution

The fourth proportional to 21,234,701.29, 31,778,863.93 and 13,031,898.52 is: 19,502,931.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234,701.29 : 31,778,863.93 = 13,031,898.52 : x
  2. Step 2: Convert to fraction form
    21,234,701.29/31,778,863.93 = 13,031,898.52/x
  3. Step 3: Cross multiply
    21,234,701.29x = 31,778,863.93 × 13,031,898.52
  4. Step 4: Simplify right side
    21,234,701.29x = 414,138,929,816,648.38
  5. Step 5: Solve for x
    x = 414,138,929,816,648.38/21,234,701.29
  6. Step 6: Final answer
    x = 19,502,931.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.