Home / 677,815,341.06-935,333,836.89-380,400,142.71

Finding the Fourth Proportional to 677,815,341.06, 935,333,836.89 and 380,400,142.71

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Solution

The fourth proportional to 677,815,341.06, 935,333,836.89 and 380,400,142.71 is: 524,923,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,815,341.06 : 935,333,836.89 = 380,400,142.71 : x
  2. Step 2: Convert to fraction form
    677,815,341.06/935,333,836.89 = 380,400,142.71/x
  3. Step 3: Cross multiply
    677,815,341.06x = 935,333,836.89 × 380,400,142.71
  4. Step 4: Simplify right side
    677,815,341.06x = 355,801,125,034,447,808
  5. Step 5: Solve for x
    x = 355,801,125,034,447,808/677,815,341.06
  6. Step 6: Final answer
    x = 524,923,387.66

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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.