Home / 281,069,542.16-387,888,089.37-155,621,740.46

Finding the Fourth Proportional to 281,069,542.16, 387,888,089.37 and 155,621,740.46

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Solution

The fourth proportional to 281,069,542.16, 387,888,089.37 and 155,621,740.46 is: 214,764,713.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,069,542.16 : 387,888,089.37 = 155,621,740.46 : x
  2. Step 2: Convert to fraction form
    281,069,542.16/387,888,089.37 = 155,621,740.46/x
  3. Step 3: Cross multiply
    281,069,542.16x = 387,888,089.37 × 155,621,740.46
  4. Step 4: Simplify right side
    281,069,542.16x = 60,363,819,572,433,152
  5. Step 5: Solve for x
    x = 60,363,819,572,433,152/281,069,542.16
  6. Step 6: Final answer
    x = 214,764,713.07

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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.