Home / 563,163,967.20-777,167,948.72-312,286,033.04

Finding the Fourth Proportional to 563,163,967.20, 777,167,948.72 and 312,286,033.04

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Solution

The fourth proportional to 563,163,967.20, 777,167,948.72 and 312,286,033.04 is: 430,955,653.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,163,967.20 : 777,167,948.72 = 312,286,033.04 : x
  2. Step 2: Convert to fraction form
    563,163,967.20/777,167,948.72 = 312,286,033.04/x
  3. Step 3: Cross multiply
    563,163,967.20x = 777,167,948.72 × 312,286,033.04
  4. Step 4: Simplify right side
    563,163,967.20x = 242,698,695,711,602,976
  5. Step 5: Solve for x
    x = 242,698,695,711,602,976/563,163,967.20
  6. Step 6: Final answer
    x = 430,955,653.85

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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.