Home / 30,723,215.76-42,399,325.80-17,670,478.32

Finding the Fourth Proportional to 30,723,215.76, 42,399,325.80 and 17,670,478.32

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Solution

The fourth proportional to 30,723,215.76, 42,399,325.80 and 17,670,478.32 is: 24,386,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,723,215.76 : 42,399,325.80 = 17,670,478.32 : x
  2. Step 2: Convert to fraction form
    30,723,215.76/42,399,325.80 = 17,670,478.32/x
  3. Step 3: Cross multiply
    30,723,215.76x = 42,399,325.80 × 17,670,478.32
  4. Step 4: Simplify right side
    30,723,215.76x = 749,216,367,331,516.62
  5. Step 5: Solve for x
    x = 749,216,367,331,516.62/30,723,215.76
  6. Step 6: Final answer
    x = 24,386,000.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.