Home / 155,822,479.55-215,033,427.43-86,208,358.66

Finding the Fourth Proportional to 155,822,479.55, 215,033,427.43 and 86,208,358.66

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Solution

The fourth proportional to 155,822,479.55, 215,033,427.43 and 86,208,358.66 is: 118,966,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,822,479.55 : 215,033,427.43 = 86,208,358.66 : x
  2. Step 2: Convert to fraction form
    155,822,479.55/215,033,427.43 = 86,208,358.66/x
  3. Step 3: Cross multiply
    155,822,479.55x = 215,033,427.43 × 86,208,358.66
  4. Step 4: Simplify right side
    155,822,479.55x = 18,537,678,835,774,520
  5. Step 5: Solve for x
    x = 18,537,678,835,774,520/155,822,479.55
  6. Step 6: Final answer
    x = 118,966,652.88

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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.