Home / 915,736,251.15-1,374,169,366.43-424,357,930.94

Finding the Fourth Proportional to 915,736,251.15, 1,374,169,366.43 and 424,357,930.94

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Solution

The fourth proportional to 915,736,251.15, 1,374,169,366.43 and 424,357,930.94 is: 636,798,716.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,736,251.15 : 1,374,169,366.43 = 424,357,930.94 : x
  2. Step 2: Convert to fraction form
    915,736,251.15/1,374,169,366.43 = 424,357,930.94/x
  3. Step 3: Cross multiply
    915,736,251.15x = 1,374,169,366.43 × 424,357,930.94
  4. Step 4: Simplify right side
    915,736,251.15x = 583,139,669,090,372,864
  5. Step 5: Solve for x
    x = 583,139,669,090,372,864/915,736,251.15
  6. Step 6: Final answer
    x = 636,798,716.18

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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.