Home / 160,705,775.20-221,767,767.12-87,366,949.60

Finding the Fourth Proportional to 160,705,775.20, 221,767,767.12 and 87,366,949.60

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Solution

The fourth proportional to 160,705,775.20, 221,767,767.12 and 87,366,949.60 is: 120,563,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,705,775.20 : 221,767,767.12 = 87,366,949.60 : x
  2. Step 2: Convert to fraction form
    160,705,775.20/221,767,767.12 = 87,366,949.60/x
  3. Step 3: Cross multiply
    160,705,775.20x = 221,767,767.12 × 87,366,949.60
  4. Step 4: Simplify right side
    160,705,775.20x = 19,375,173,332,877,576
  5. Step 5: Solve for x
    x = 19,375,173,332,877,576/160,705,775.20
  6. Step 6: Final answer
    x = 120,563,018.40

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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.