Home / 129,033,094.80-193,549,642.20-42,784,813.20

Finding the Fourth Proportional to 129,033,094.80, 193,549,642.20 and 42,784,813.20

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Solution

The fourth proportional to 129,033,094.80, 193,549,642.20 and 42,784,813.20 is: 64,177,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,033,094.80 : 193,549,642.20 = 42,784,813.20 : x
  2. Step 2: Convert to fraction form
    129,033,094.80/193,549,642.20 = 42,784,813.20/x
  3. Step 3: Cross multiply
    129,033,094.80x = 193,549,642.20 × 42,784,813.20
  4. Step 4: Simplify right side
    129,033,094.80x = 8,280,985,286,453,837
  5. Step 5: Solve for x
    x = 8,280,985,286,453,837/129,033,094.80
  6. Step 6: Final answer
    x = 64,177,219.80

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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.