Home / 30,468,479.12-42,047,275-16,717,439.60

Finding the Fourth Proportional to 30,468,479.12, 42,047,275 and 16,717,439.60

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Solution

The fourth proportional to 30,468,479.12, 42,047,275 and 16,717,439.60 is: 23,070,491.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,468,479.12 : 42,047,275 = 16,717,439.60 : x
  2. Step 2: Convert to fraction form
    30,468,479.12/42,047,275 = 16,717,439.60/x
  3. Step 3: Cross multiply
    30,468,479.12x = 42,047,275 × 16,717,439.60
  4. Step 4: Simplify right side
    30,468,479.12x = 702,922,780,157,090
  5. Step 5: Solve for x
    x = 702,922,780,157,090/30,468,479.12
  6. Step 6: Final answer
    x = 23,070,491.22

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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.