Home / 31,418,001.20-47,127,001.80-8,698,898.45

Finding the Fourth Proportional to 31,418,001.20, 47,127,001.80 and 8,698,898.45

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Solution

The fourth proportional to 31,418,001.20, 47,127,001.80 and 8,698,898.45 is: 13,048,347.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418,001.20 : 47,127,001.80 = 8,698,898.45 : x
  2. Step 2: Convert to fraction form
    31,418,001.20/47,127,001.80 = 8,698,898.45/x
  3. Step 3: Cross multiply
    31,418,001.20x = 47,127,001.80 × 8,698,898.45
  4. Step 4: Simplify right side
    31,418,001.20x = 409,953,002,911,167.12
  5. Step 5: Solve for x
    x = 409,953,002,911,167.12/31,418,001.20
  6. Step 6: Final answer
    x = 13,048,347.68

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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.