Home / 315,932,419.35-435,984,359.56-176,703,187.95

Finding the Fourth Proportional to 315,932,419.35, 435,984,359.56 and 176,703,187.95

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Solution

The fourth proportional to 315,932,419.35, 435,984,359.56 and 176,703,187.95 is: 243,849,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,932,419.35 : 435,984,359.56 = 176,703,187.95 : x
  2. Step 2: Convert to fraction form
    315,932,419.35/435,984,359.56 = 176,703,187.95/x
  3. Step 3: Cross multiply
    315,932,419.35x = 435,984,359.56 × 176,703,187.95
  4. Step 4: Simplify right side
    315,932,419.35x = 77,039,826,230,149,296
  5. Step 5: Solve for x
    x = 77,039,826,230,149,296/315,932,419.35
  6. Step 6: Final answer
    x = 243,849,068.70

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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.