Home / 497,741,332.86-686,691,463.59-311,778,603.90

Finding the Fourth Proportional to 497,741,332.86, 686,691,463.59 and 311,778,603.90

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Solution

The fourth proportional to 497,741,332.86, 686,691,463.59 and 311,778,603.90 is: 430,134,472.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,741,332.86 : 686,691,463.59 = 311,778,603.90 : x
  2. Step 2: Convert to fraction form
    497,741,332.86/686,691,463.59 = 311,778,603.90/x
  3. Step 3: Cross multiply
    497,741,332.86x = 686,691,463.59 × 311,778,603.90
  4. Step 4: Simplify right side
    497,741,332.86x = 214,095,705,828,137,888
  5. Step 5: Solve for x
    x = 214,095,705,828,137,888/497,741,332.86
  6. Step 6: Final answer
    x = 430,134,472.86

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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.