Home / 143,820,681.08-198,472,454.32-77,741,180.40

Finding the Fourth Proportional to 143,820,681.08, 198,472,454.32 and 77,741,180.40

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Solution

The fourth proportional to 143,820,681.08, 198,472,454.32 and 77,741,180.40 is: 107,282,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,820,681.08 : 198,472,454.32 = 77,741,180.40 : x
  2. Step 2: Convert to fraction form
    143,820,681.08/198,472,454.32 = 77,741,180.40/x
  3. Step 3: Cross multiply
    143,820,681.08x = 198,472,454.32 × 77,741,180.40
  4. Step 4: Simplify right side
    143,820,681.08x = 15,429,482,875,721,880
  5. Step 5: Solve for x
    x = 15,429,482,875,721,880/143,820,681.08
  6. Step 6: Final answer
    x = 107,282,782.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.