Home / 126,086,678.80-189,130,018.20-83,004,528.40

Finding the Fourth Proportional to 126,086,678.80, 189,130,018.20 and 83,004,528.40

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Solution

The fourth proportional to 126,086,678.80, 189,130,018.20 and 83,004,528.40 is: 124,506,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,086,678.80 : 189,130,018.20 = 83,004,528.40 : x
  2. Step 2: Convert to fraction form
    126,086,678.80/189,130,018.20 = 83,004,528.40/x
  3. Step 3: Cross multiply
    126,086,678.80x = 189,130,018.20 × 83,004,528.40
  4. Step 4: Simplify right side
    126,086,678.80x = 15,698,647,966,974,418
  5. Step 5: Solve for x
    x = 15,698,647,966,974,418/126,086,678.80
  6. Step 6: Final answer
    x = 124,506,792.60

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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.