Home / 42,771,208.80-64,156,813.20-12,482,133.60

Finding the Fourth Proportional to 42,771,208.80, 64,156,813.20 and 12,482,133.60

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Solution

The fourth proportional to 42,771,208.80, 64,156,813.20 and 12,482,133.60 is: 18,723,200.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,771,208.80 : 64,156,813.20 = 12,482,133.60 : x
  2. Step 2: Convert to fraction form
    42,771,208.80/64,156,813.20 = 12,482,133.60/x
  3. Step 3: Cross multiply
    42,771,208.80x = 64,156,813.20 × 12,482,133.60
  4. Step 4: Simplify right side
    42,771,208.80x = 800,813,913,712,643.50
  5. Step 5: Solve for x
    x = 800,813,913,712,643.50/42,771,208.80
  6. Step 6: Final answer
    x = 18,723,200.40

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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.