Home / 161,757,999.90-242,636,999.85-70,785,020.70

Finding the Fourth Proportional to 161,757,999.90, 242,636,999.85 and 70,785,020.70

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Solution

The fourth proportional to 161,757,999.90, 242,636,999.85 and 70,785,020.70 is: 106,177,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,757,999.90 : 242,636,999.85 = 70,785,020.70 : x
  2. Step 2: Convert to fraction form
    161,757,999.90/242,636,999.85 = 70,785,020.70/x
  3. Step 3: Cross multiply
    161,757,999.90x = 242,636,999.85 × 70,785,020.70
  4. Step 4: Simplify right side
    161,757,999.90x = 17,175,065,056,968,148
  5. Step 5: Solve for x
    x = 17,175,065,056,968,148/161,757,999.90
  6. Step 6: Final answer
    x = 106,177,531.05

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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.