Home / 131,656,548.12-181,617,154.20-81,404,703.11

Finding the Fourth Proportional to 131,656,548.12, 181,617,154.20 and 81,404,703.11

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Solution

The fourth proportional to 131,656,548.12, 181,617,154.20 and 81,404,703.11 is: 112,295,899.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,656,548.12 : 181,617,154.20 = 81,404,703.11 : x
  2. Step 2: Convert to fraction form
    131,656,548.12/181,617,154.20 = 81,404,703.11/x
  3. Step 3: Cross multiply
    131,656,548.12x = 181,617,154.20 × 81,404,703.11
  4. Step 4: Simplify right side
    131,656,548.12x = 14,784,490,516,018,980
  5. Step 5: Solve for x
    x = 14,784,490,516,018,980/131,656,548.12
  6. Step 6: Final answer
    x = 112,295,899.65

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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.