Home / 100,282,642.25-138,339,114.48-65,495,695.37

Finding the Fourth Proportional to 100,282,642.25, 138,339,114.48 and 65,495,695.37

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Solution

The fourth proportional to 100,282,642.25, 138,339,114.48 and 65,495,695.37 is: 90,350,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,282,642.25 : 138,339,114.48 = 65,495,695.37 : x
  2. Step 2: Convert to fraction form
    100,282,642.25/138,339,114.48 = 65,495,695.37/x
  3. Step 3: Cross multiply
    100,282,642.25x = 138,339,114.48 × 65,495,695.37
  4. Step 4: Simplify right side
    100,282,642.25x = 9,060,616,499,045,940
  5. Step 5: Solve for x
    x = 9,060,616,499,045,940/100,282,642.25
  6. Step 6: Final answer
    x = 90,350,795.47

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1.5x scale

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.