Home / 83,133,051.70-124,699,577.55-81,715,875.70

Finding the Fourth Proportional to 83,133,051.70, 124,699,577.55 and 81,715,875.70

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Solution

The fourth proportional to 83,133,051.70, 124,699,577.55 and 81,715,875.70 is: 122,573,813.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,133,051.70 : 124,699,577.55 = 81,715,875.70 : x
  2. Step 2: Convert to fraction form
    83,133,051.70/124,699,577.55 = 81,715,875.70/x
  3. Step 3: Cross multiply
    83,133,051.70x = 124,699,577.55 × 81,715,875.70
  4. Step 4: Simplify right side
    83,133,051.70x = 10,189,935,178,918,310
  5. Step 5: Solve for x
    x = 10,189,935,178,918,310/83,133,051.70
  6. Step 6: Final answer
    x = 122,573,813.55

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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.