Home / 852,326,726.40-1,278,490,089.60-393,161,702.40

Finding the Fourth Proportional to 852,326,726.40, 1,278,490,089.60 and 393,161,702.40

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Solution

The fourth proportional to 852,326,726.40, 1,278,490,089.60 and 393,161,702.40 is: 589,742,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,326,726.40 : 1,278,490,089.60 = 393,161,702.40 : x
  2. Step 2: Convert to fraction form
    852,326,726.40/1,278,490,089.60 = 393,161,702.40/x
  3. Step 3: Cross multiply
    852,326,726.40x = 1,278,490,089.60 × 393,161,702.40
  4. Step 4: Simplify right side
    852,326,726.40x = 502,653,340,128,664,448
  5. Step 5: Solve for x
    x = 502,653,340,128,664,448/852,326,726.40
  6. Step 6: Final answer
    x = 589,742,553.60

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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.