Home / 385,663,164.14-532,218,291.36-209,452,419.74

Finding the Fourth Proportional to 385,663,164.14, 532,218,291.36 and 209,452,419.74

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Solution

The fourth proportional to 385,663,164.14, 532,218,291.36 and 209,452,419.74 is: 289,046,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,663,164.14 : 532,218,291.36 = 209,452,419.74 : x
  2. Step 2: Convert to fraction form
    385,663,164.14/532,218,291.36 = 209,452,419.74/x
  3. Step 3: Cross multiply
    385,663,164.14x = 532,218,291.36 × 209,452,419.74
  4. Step 4: Simplify right side
    385,663,164.14x = 111,474,408,955,240,336
  5. Step 5: Solve for x
    x = 111,474,408,955,240,336/385,663,164.14
  6. Step 6: Final answer
    x = 289,046,036.34

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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.