Home / 128,083,549.07-176,753,154.35-69,345,737.30

Finding the Fourth Proportional to 128,083,549.07, 176,753,154.35 and 69,345,737.30

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Solution

The fourth proportional to 128,083,549.07, 176,753,154.35 and 69,345,737.30 is: 95,695,957.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,083,549.07 : 176,753,154.35 = 69,345,737.30 : x
  2. Step 2: Convert to fraction form
    128,083,549.07/176,753,154.35 = 69,345,737.30/x
  3. Step 3: Cross multiply
    128,083,549.07x = 176,753,154.35 × 69,345,737.30
  4. Step 4: Simplify right side
    128,083,549.07x = 12,257,077,807,270,958
  5. Step 5: Solve for x
    x = 12,257,077,807,270,958/128,083,549.07
  6. Step 6: Final answer
    x = 95,695,957.03

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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.