Home / 210,006,000.65-315,009,000.98-137,446,589.45

Finding the Fourth Proportional to 210,006,000.65, 315,009,000.98 and 137,446,589.45

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Solution

The fourth proportional to 210,006,000.65, 315,009,000.98 and 137,446,589.45 is: 206,169,884.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,006,000.65 : 315,009,000.98 = 137,446,589.45 : x
  2. Step 2: Convert to fraction form
    210,006,000.65/315,009,000.98 = 137,446,589.45/x
  3. Step 3: Cross multiply
    210,006,000.65x = 315,009,000.98 × 137,446,589.45
  4. Step 4: Simplify right side
    210,006,000.65x = 43,296,912,830,752,704
  5. Step 5: Solve for x
    x = 43,296,912,830,752,704/210,006,000.65
  6. Step 6: Final answer
    x = 206,169,884.18

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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.