Home / 191,612,609.16-287,442,816.75-75,012,903.74

Finding the Fourth Proportional to 191,612,609.16, 287,442,816.75 and 75,012,903.74

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Solution

The fourth proportional to 191,612,609.16, 287,442,816.75 and 75,012,903.74 is: 112,528,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,612,609.16 : 287,442,816.75 = 75,012,903.74 : x
  2. Step 2: Convert to fraction form
    191,612,609.16/287,442,816.75 = 75,012,903.74/x
  3. Step 3: Cross multiply
    191,612,609.16x = 287,442,816.75 × 75,012,903.74
  4. Step 4: Simplify right side
    191,612,609.16x = 21,561,920,342,184,996
  5. Step 5: Solve for x
    x = 21,561,920,342,184,996/191,612,609.16
  6. Step 6: Final answer
    x = 112,528,713.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.