Home / 161,861,277.51-223,368,405.40-87,521,660.16

Finding the Fourth Proportional to 161,861,277.51, 223,368,405.40 and 87,521,660.16

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Solution

The fourth proportional to 161,861,277.51, 223,368,405.40 and 87,521,660.16 is: 120,779,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,861,277.51 : 223,368,405.40 = 87,521,660.16 : x
  2. Step 2: Convert to fraction form
    161,861,277.51/223,368,405.40 = 87,521,660.16/x
  3. Step 3: Cross multiply
    161,861,277.51x = 223,368,405.40 × 87,521,660.16
  4. Step 4: Simplify right side
    161,861,277.51x = 19,549,573,667,899,908
  5. Step 5: Solve for x
    x = 19,549,573,667,899,908/161,861,277.51
  6. Step 6: Final answer
    x = 120,779,805.82

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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.