Home / 458,842,955.10-688,263,807.21-213,065,192.22

Finding the Fourth Proportional to 458,842,955.10, 688,263,807.21 and 213,065,192.22

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Solution

The fourth proportional to 458,842,955.10, 688,263,807.21 and 213,065,192.22 is: 319,597,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,842,955.10 : 688,263,807.21 = 213,065,192.22 : x
  2. Step 2: Convert to fraction form
    458,842,955.10/688,263,807.21 = 213,065,192.22/x
  3. Step 3: Cross multiply
    458,842,955.10x = 688,263,807.21 × 213,065,192.22
  4. Step 4: Simplify right side
    458,842,955.10x = 146,645,060,381,267,680
  5. Step 5: Solve for x
    x = 146,645,060,381,267,680/458,842,955.10
  6. Step 6: Final answer
    x = 319,597,497.90

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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.