Home / 345,281,285.20-517,921,927.80-89,979,653.20

Finding the Fourth Proportional to 345,281,285.20, 517,921,927.80 and 89,979,653.20

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Solution

The fourth proportional to 345,281,285.20, 517,921,927.80 and 89,979,653.20 is: 134,969,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,281,285.20 : 517,921,927.80 = 89,979,653.20 : x
  2. Step 2: Convert to fraction form
    345,281,285.20/517,921,927.80 = 89,979,653.20/x
  3. Step 3: Cross multiply
    345,281,285.20x = 517,921,927.80 × 89,979,653.20
  4. Step 4: Simplify right side
    345,281,285.20x = 46,602,435,448,119,440
  5. Step 5: Solve for x
    x = 46,602,435,448,119,440/345,281,285.20
  6. Step 6: Final answer
    x = 134,969,479.80

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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.