Home / 90,989,089.20-136,483,633.80-56,551,712.40

Finding the Fourth Proportional to 90,989,089.20, 136,483,633.80 and 56,551,712.40

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Solution

The fourth proportional to 90,989,089.20, 136,483,633.80 and 56,551,712.40 is: 84,827,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,989,089.20 : 136,483,633.80 = 56,551,712.40 : x
  2. Step 2: Convert to fraction form
    90,989,089.20/136,483,633.80 = 56,551,712.40/x
  3. Step 3: Cross multiply
    90,989,089.20x = 136,483,633.80 × 56,551,712.40
  4. Step 4: Simplify right side
    90,989,089.20x = 7,718,383,205,964,520
  5. Step 5: Solve for x
    x = 7,718,383,205,964,520/90,989,089.20
  6. Step 6: Final answer
    x = 84,827,568.60

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1.5x scale

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.