Home / 219,765,931.60-329,648,897.40-66,435,653.20

Finding the Fourth Proportional to 219,765,931.60, 329,648,897.40 and 66,435,653.20

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Solution

The fourth proportional to 219,765,931.60, 329,648,897.40 and 66,435,653.20 is: 99,653,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,765,931.60 : 329,648,897.40 = 66,435,653.20 : x
  2. Step 2: Convert to fraction form
    219,765,931.60/329,648,897.40 = 66,435,653.20/x
  3. Step 3: Cross multiply
    219,765,931.60x = 329,648,897.40 × 66,435,653.20
  4. Step 4: Simplify right side
    219,765,931.60x = 21,900,439,825,428,780
  5. Step 5: Solve for x
    x = 21,900,439,825,428,780/219,765,931.60
  6. Step 6: Final answer
    x = 99,653,479.80

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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.