Home / 191,612,608.66-287,442,816-75,012,903.24

Finding the Fourth Proportional to 191,612,608.66, 287,442,816 and 75,012,903.24

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Solution

The fourth proportional to 191,612,608.66, 287,442,816 and 75,012,903.24 is: 112,528,712.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,612,608.66 : 287,442,816 = 75,012,903.24 : x
  2. Step 2: Convert to fraction form
    191,612,608.66/287,442,816 = 75,012,903.24/x
  3. Step 3: Cross multiply
    191,612,608.66x = 287,442,816 × 75,012,903.24
  4. Step 4: Simplify right side
    191,612,608.66x = 21,561,920,143,641,124
  5. Step 5: Solve for x
    x = 21,561,920,143,641,124/191,612,608.66
  6. Step 6: Final answer
    x = 112,528,712.46

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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.