Home / 554,578,814.60-765,342,678.90-307,060,190.72

Finding the Fourth Proportional to 554,578,814.60, 765,342,678.90 and 307,060,190.72

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Solution

The fourth proportional to 554,578,814.60, 765,342,678.90 and 307,060,190.72 is: 423,756,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,578,814.60 : 765,342,678.90 = 307,060,190.72 : x
  2. Step 2: Convert to fraction form
    554,578,814.60/765,342,678.90 = 307,060,190.72/x
  3. Step 3: Cross multiply
    554,578,814.60x = 765,342,678.90 × 307,060,190.72
  4. Step 4: Simplify right side
    554,578,814.60x = 235,006,268,947,654,432
  5. Step 5: Solve for x
    x = 235,006,268,947,654,432/554,578,814.60
  6. Step 6: Final answer
    x = 423,756,304.35

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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.