Home / 281,069,543.60-387,888,091.35-155,621,741.90

Finding the Fourth Proportional to 281,069,543.60, 387,888,091.35 and 155,621,741.90

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Solution

The fourth proportional to 281,069,543.60, 387,888,091.35 and 155,621,741.90 is: 214,764,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,069,543.60 : 387,888,091.35 = 155,621,741.90 : x
  2. Step 2: Convert to fraction form
    281,069,543.60/387,888,091.35 = 155,621,741.90/x
  3. Step 3: Cross multiply
    281,069,543.60x = 387,888,091.35 × 155,621,741.90
  4. Step 4: Simplify right side
    281,069,543.60x = 60,363,820,438,153,328
  5. Step 5: Solve for x
    x = 60,363,820,438,153,328/281,069,543.60
  6. Step 6: Final answer
    x = 214,764,715.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.