Home / 171,648,685.40-257,473,028.10-42,255,267.80

Finding the Fourth Proportional to 171,648,685.40, 257,473,028.10 and 42,255,267.80

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Solution

The fourth proportional to 171,648,685.40, 257,473,028.10 and 42,255,267.80 is: 63,382,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,648,685.40 : 257,473,028.10 = 42,255,267.80 : x
  2. Step 2: Convert to fraction form
    171,648,685.40/257,473,028.10 = 42,255,267.80/x
  3. Step 3: Cross multiply
    171,648,685.40x = 257,473,028.10 × 42,255,267.80
  4. Step 4: Simplify right side
    171,648,685.40x = 10,879,591,753,642,424
  5. Step 5: Solve for x
    x = 10,879,591,753,642,424/171,648,685.40
  6. Step 6: Final answer
    x = 63,382,901.70

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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.