Home / 161,861,275.51-223,368,402.65-87,521,658.16

Finding the Fourth Proportional to 161,861,275.51, 223,368,402.65 and 87,521,658.16

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Solution

The fourth proportional to 161,861,275.51, 223,368,402.65 and 87,521,658.16 is: 120,779,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,861,275.51 : 223,368,402.65 = 87,521,658.16 : x
  2. Step 2: Convert to fraction form
    161,861,275.51/223,368,402.65 = 87,521,658.16/x
  3. Step 3: Cross multiply
    161,861,275.51x = 223,368,402.65 × 87,521,658.16
  4. Step 4: Simplify right side
    161,861,275.51x = 19,549,572,979,482,508
  5. Step 5: Solve for x
    x = 19,549,572,979,482,508/161,861,275.51
  6. Step 6: Final answer
    x = 120,779,803.06

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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.