Home / 103,513,960.80-155,270,941.20-31,710,376.80

Finding the Fourth Proportional to 103,513,960.80, 155,270,941.20 and 31,710,376.80

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Solution

The fourth proportional to 103,513,960.80, 155,270,941.20 and 31,710,376.80 is: 47,565,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,513,960.80 : 155,270,941.20 = 31,710,376.80 : x
  2. Step 2: Convert to fraction form
    103,513,960.80/155,270,941.20 = 31,710,376.80/x
  3. Step 3: Cross multiply
    103,513,960.80x = 155,270,941.20 × 31,710,376.80
  4. Step 4: Simplify right side
    103,513,960.80x = 4,923,700,051,542,644
  5. Step 5: Solve for x
    x = 4,923,700,051,542,644/103,513,960.80
  6. Step 6: Final answer
    x = 47,565,565.20

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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.