Home / 161,861,567.40-223,368,805.04-87,521,950.34

Finding the Fourth Proportional to 161,861,567.40, 223,368,805.04 and 87,521,950.34

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Solution

The fourth proportional to 161,861,567.40, 223,368,805.04 and 87,521,950.34 is: 120,780,206.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,861,567.40 : 223,368,805.04 = 87,521,950.34 : x
  2. Step 2: Convert to fraction form
    161,861,567.40/223,368,805.04 = 87,521,950.34/x
  3. Step 3: Cross multiply
    161,861,567.40x = 223,368,805.04 × 87,521,950.34
  4. Step 4: Simplify right side
    161,861,567.40x = 19,549,673,462,216,020
  5. Step 5: Solve for x
    x = 19,549,673,462,216,020/161,861,567.40
  6. Step 6: Final answer
    x = 120,780,206.05

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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.