Home / 206,681,152.80-310,021,729.20-185,636,089.20

Finding the Fourth Proportional to 206,681,152.80, 310,021,729.20 and 185,636,089.20

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Solution

The fourth proportional to 206,681,152.80, 310,021,729.20 and 185,636,089.20 is: 278,454,133.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,681,152.80 : 310,021,729.20 = 185,636,089.20 : x
  2. Step 2: Convert to fraction form
    206,681,152.80/310,021,729.20 = 185,636,089.20/x
  3. Step 3: Cross multiply
    206,681,152.80x = 310,021,729.20 × 185,636,089.20
  4. Step 4: Simplify right side
    206,681,152.80x = 57,551,221,375,709,440
  5. Step 5: Solve for x
    x = 57,551,221,375,709,440/206,681,152.80
  6. Step 6: Final answer
    x = 278,454,133.80

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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.