Home / 72,354,909.40-108,532,364.10-43,657,095.40

Finding the Fourth Proportional to 72,354,909.40, 108,532,364.10 and 43,657,095.40

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Solution

The fourth proportional to 72,354,909.40, 108,532,364.10 and 43,657,095.40 is: 65,485,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,354,909.40 : 108,532,364.10 = 43,657,095.40 : x
  2. Step 2: Convert to fraction form
    72,354,909.40/108,532,364.10 = 43,657,095.40/x
  3. Step 3: Cross multiply
    72,354,909.40x = 108,532,364.10 × 43,657,095.40
  4. Step 4: Simplify right side
    72,354,909.40x = 4,738,207,773,501,235
  5. Step 5: Solve for x
    x = 4,738,207,773,501,235/72,354,909.40
  6. Step 6: Final answer
    x = 65,485,643.10

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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.