Home / 30,548,530.17-42,158,484.99-18,949,830.75

Finding the Fourth Proportional to 30,548,530.17, 42,158,484.99 and 18,949,830.75

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Solution

The fourth proportional to 30,548,530.17, 42,158,484.99 and 18,949,830.75 is: 26,151,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,548,530.17 : 42,158,484.99 = 18,949,830.75 : x
  2. Step 2: Convert to fraction form
    30,548,530.17/42,158,484.99 = 18,949,830.75/x
  3. Step 3: Cross multiply
    30,548,530.17x = 42,158,484.99 × 18,949,830.75
  4. Step 4: Simplify right side
    30,548,530.17x = 798,896,155,236,915.50
  5. Step 5: Solve for x
    x = 798,896,155,236,915.50/30,548,530.17
  6. Step 6: Final answer
    x = 26,151,705.20

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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.