Home / 139,829,633.80-192,976,386.82-77,118,000.08

Finding the Fourth Proportional to 139,829,633.80, 192,976,386.82 and 77,118,000.08

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Solution

The fourth proportional to 139,829,633.80, 192,976,386.82 and 77,118,000.08 is: 106,429,178.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,829,633.80 : 192,976,386.82 = 77,118,000.08 : x
  2. Step 2: Convert to fraction form
    139,829,633.80/192,976,386.82 = 77,118,000.08/x
  3. Step 3: Cross multiply
    139,829,633.80x = 192,976,386.82 × 77,118,000.08
  4. Step 4: Simplify right side
    139,829,633.80x = 14,881,953,014,222,870
  5. Step 5: Solve for x
    x = 14,881,953,014,222,870/139,829,633.80
  6. Step 6: Final answer
    x = 106,429,178.21

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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.