Home / 645,596,198.32-891,197,656.10-434,025,732.08

Finding the Fourth Proportional to 645,596,198.32, 891,197,656.10 and 434,025,732.08

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Solution

The fourth proportional to 645,596,198.32, 891,197,656.10 and 434,025,732.08 is: 599,140,323.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,596,198.32 : 891,197,656.10 = 434,025,732.08 : x
  2. Step 2: Convert to fraction form
    645,596,198.32/891,197,656.10 = 434,025,732.08/x
  3. Step 3: Cross multiply
    645,596,198.32x = 891,197,656.10 × 434,025,732.08
  4. Step 4: Simplify right side
    645,596,198.32x = 386,802,715,116,782,592
  5. Step 5: Solve for x
    x = 386,802,715,116,782,592/645,596,198.32
  6. Step 6: Final answer
    x = 599,140,323.51

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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.