Home / 120,251,018.80-180,376,528.20-103,032,330.40

Finding the Fourth Proportional to 120,251,018.80, 180,376,528.20 and 103,032,330.40

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Solution

The fourth proportional to 120,251,018.80, 180,376,528.20 and 103,032,330.40 is: 154,548,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,251,018.80 : 180,376,528.20 = 103,032,330.40 : x
  2. Step 2: Convert to fraction form
    120,251,018.80/180,376,528.20 = 103,032,330.40/x
  3. Step 3: Cross multiply
    120,251,018.80x = 180,376,528.20 × 103,032,330.40
  4. Step 4: Simplify right side
    120,251,018.80x = 18,584,614,049,907,316
  5. Step 5: Solve for x
    x = 18,584,614,049,907,316/120,251,018.80
  6. Step 6: Final answer
    x = 154,548,495.60

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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.