Home / 272,878,117.80-409,317,176.70-78,795,864.60

Finding the Fourth Proportional to 272,878,117.80, 409,317,176.70 and 78,795,864.60

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Solution

The fourth proportional to 272,878,117.80, 409,317,176.70 and 78,795,864.60 is: 118,193,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,878,117.80 : 409,317,176.70 = 78,795,864.60 : x
  2. Step 2: Convert to fraction form
    272,878,117.80/409,317,176.70 = 78,795,864.60/x
  3. Step 3: Cross multiply
    272,878,117.80x = 409,317,176.70 × 78,795,864.60
  4. Step 4: Simplify right side
    272,878,117.80x = 32,252,500,833,707,472
  5. Step 5: Solve for x
    x = 32,252,500,833,707,472/272,878,117.80
  6. Step 6: Final answer
    x = 118,193,796.90

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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.