Home / 158,068,207.52-218,136,708.96-86,539,895.54

Finding the Fourth Proportional to 158,068,207.52, 218,136,708.96 and 86,539,895.54

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Solution

The fourth proportional to 158,068,207.52, 218,136,708.96 and 86,539,895.54 is: 119,426,469.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,068,207.52 : 218,136,708.96 = 86,539,895.54 : x
  2. Step 2: Convert to fraction form
    158,068,207.52/218,136,708.96 = 86,539,895.54/x
  3. Step 3: Cross multiply
    158,068,207.52x = 218,136,708.96 × 86,539,895.54
  4. Step 4: Simplify right side
    158,068,207.52x = 18,877,528,006,837,784
  5. Step 5: Solve for x
    x = 18,877,528,006,837,784/158,068,207.52
  6. Step 6: Final answer
    x = 119,426,469.77

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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.