Home / 2,127,472,041.85-3,188,669,159.88-990,178,354.65

Finding the Fourth Proportional to 2,127,472,041.85, 3,188,669,159.88 and 990,178,354.65

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Solution

The fourth proportional to 2,127,472,041.85, 3,188,669,159.88 and 990,178,354.65 is: 1,484,085,863.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127,472,041.85 : 3,188,669,159.88 = 990,178,354.65 : x
  2. Step 2: Convert to fraction form
    2,127,472,041.85/3,188,669,159.88 = 990,178,354.65/x
  3. Step 3: Cross multiply
    2,127,472,041.85x = 3,188,669,159.88 × 990,178,354.65
  4. Step 4: Simplify right side
    2,127,472,041.85x = 3,157,351,182,237,233,152
  5. Step 5: Solve for x
    x = 3,157,351,182,237,233,152/2,127,472,041.85
  6. Step 6: Final answer
    x = 1,484,085,863.47

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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.