Home / 30,925,997.64-42,678,853.02-18,532,006.20

Finding the Fourth Proportional to 30,925,997.64, 42,678,853.02 and 18,532,006.20

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Solution

The fourth proportional to 30,925,997.64, 42,678,853.02 and 18,532,006.20 is: 25,574,753.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,925,997.64 : 42,678,853.02 = 18,532,006.20 : x
  2. Step 2: Convert to fraction form
    30,925,997.64/42,678,853.02 = 18,532,006.20/x
  3. Step 3: Cross multiply
    30,925,997.64x = 42,678,853.02 × 18,532,006.20
  4. Step 4: Simplify right side
    30,925,997.64x = 790,924,768,775,528.75
  5. Step 5: Solve for x
    x = 790,924,768,775,528.75/30,925,997.64
  6. Step 6: Final answer
    x = 25,574,753.58

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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.