Home / 78,576,213.11-108,435,281.63-42,812,475.93

Finding the Fourth Proportional to 78,576,213.11, 108,435,281.63 and 42,812,475.93

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Solution

The fourth proportional to 78,576,213.11, 108,435,281.63 and 42,812,475.93 is: 59,081,275.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,576,213.11 : 108,435,281.63 = 42,812,475.93 : x
  2. Step 2: Convert to fraction form
    78,576,213.11/108,435,281.63 = 42,812,475.93/x
  3. Step 3: Cross multiply
    78,576,213.11x = 108,435,281.63 × 42,812,475.93
  4. Step 4: Simplify right side
    78,576,213.11x = 4,642,382,884,533,084
  5. Step 5: Solve for x
    x = 4,642,382,884,533,084/78,576,213.11
  6. Step 6: Final answer
    x = 59,081,275.38

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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.