Home / 31,531,421.20-47,304,130.20-14,487,984.40

Finding the Fourth Proportional to 31,531,421.20, 47,304,130.20 and 14,487,984.40

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Solution

The fourth proportional to 31,531,421.20, 47,304,130.20 and 14,487,984.40 is: 21,735,192.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531,421.20 : 47,304,130.20 = 14,487,984.40 : x
  2. Step 2: Convert to fraction form
    31,531,421.20/47,304,130.20 = 14,487,984.40/x
  3. Step 3: Cross multiply
    31,531,421.20x = 47,304,130.20 × 14,487,984.40
  4. Step 4: Simplify right side
    31,531,421.20x = 685,341,500,393,169
  5. Step 5: Solve for x
    x = 685,341,500,393,169/31,531,421.20
  6. Step 6: Final answer
    x = 21,735,192.21

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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.