Home / 660,077,234.10-990,115,851.15-199,955,616.30

Finding the Fourth Proportional to 660,077,234.10, 990,115,851.15 and 199,955,616.30

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Solution

The fourth proportional to 660,077,234.10, 990,115,851.15 and 199,955,616.30 is: 299,933,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,077,234.10 : 990,115,851.15 = 199,955,616.30 : x
  2. Step 2: Convert to fraction form
    660,077,234.10/990,115,851.15 = 199,955,616.30/x
  3. Step 3: Cross multiply
    660,077,234.10x = 990,115,851.15 × 199,955,616.30
  4. Step 4: Simplify right side
    660,077,234.10x = 197,979,225,225,097,312
  5. Step 5: Solve for x
    x = 197,979,225,225,097,312/660,077,234.10
  6. Step 6: Final answer
    x = 299,933,424.45

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1.5x scale

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.