Home / 161,861,278.51-223,368,406.78-87,521,661.16

Finding the Fourth Proportional to 161,861,278.51, 223,368,406.78 and 87,521,661.16

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Solution

The fourth proportional to 161,861,278.51, 223,368,406.78 and 87,521,661.16 is: 120,779,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,861,278.51 : 223,368,406.78 = 87,521,661.16 : x
  2. Step 2: Convert to fraction form
    161,861,278.51/223,368,406.78 = 87,521,661.16/x
  3. Step 3: Cross multiply
    161,861,278.51x = 223,368,406.78 × 87,521,661.16
  4. Step 4: Simplify right side
    161,861,278.51x = 19,549,574,012,048,204
  5. Step 5: Solve for x
    x = 19,549,574,012,048,204/161,861,278.51
  6. Step 6: Final answer
    x = 120,779,807.20

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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.