Home / 103,513,962.30-155,270,943.45-31,710,378.30

Finding the Fourth Proportional to 103,513,962.30, 155,270,943.45 and 31,710,378.30

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Solution

The fourth proportional to 103,513,962.30, 155,270,943.45 and 31,710,378.30 is: 47,565,567.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,513,962.30 : 155,270,943.45 = 31,710,378.30 : x
  2. Step 2: Convert to fraction form
    103,513,962.30/155,270,943.45 = 31,710,378.30/x
  3. Step 3: Cross multiply
    103,513,962.30x = 155,270,943.45 × 31,710,378.30
  4. Step 4: Simplify right side
    103,513,962.30x = 4,923,700,355,797,407
  5. Step 5: Solve for x
    x = 4,923,700,355,797,407/103,513,962.30
  6. Step 6: Final answer
    x = 47,565,567.45

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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.