Home / 660,384,983.20-990,577,474.80-373,730,519.20

Finding the Fourth Proportional to 660,384,983.20, 990,577,474.80 and 373,730,519.20

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Solution

The fourth proportional to 660,384,983.20, 990,577,474.80 and 373,730,519.20 is: 560,595,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,384,983.20 : 990,577,474.80 = 373,730,519.20 : x
  2. Step 2: Convert to fraction form
    660,384,983.20/990,577,474.80 = 373,730,519.20/x
  3. Step 3: Cross multiply
    660,384,983.20x = 990,577,474.80 × 373,730,519.20
  4. Step 4: Simplify right side
    660,384,983.20x = 370,209,033,964,828,864
  5. Step 5: Solve for x
    x = 370,209,033,964,828,864/660,384,983.20
  6. Step 6: Final answer
    x = 560,595,778.80

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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.