Home / 485,102,715.63-727,653,990.35-153,342,616.50

Finding the Fourth Proportional to 485,102,715.63, 727,653,990.35 and 153,342,616.50

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Solution

The fourth proportional to 485,102,715.63, 727,653,990.35 and 153,342,616.50 is: 230,013,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,102,715.63 : 727,653,990.35 = 153,342,616.50 : x
  2. Step 2: Convert to fraction form
    485,102,715.63/727,653,990.35 = 153,342,616.50/x
  3. Step 3: Cross multiply
    485,102,715.63x = 727,653,990.35 × 153,342,616.50
  4. Step 4: Simplify right side
    485,102,715.63x = 111,580,366,784,417,360
  5. Step 5: Solve for x
    x = 111,580,366,784,417,360/485,102,715.63
  6. Step 6: Final answer
    x = 230,013,898.48

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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.