Home / 912,969,966.85-1,368,602,981.19-360,276,972.05

Finding the Fourth Proportional to 912,969,966.85, 1,368,602,981.19 and 360,276,972.05

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Solution

The fourth proportional to 912,969,966.85, 1,368,602,981.19 and 360,276,972.05 is: 540,079,253.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,969,966.85 : 1,368,602,981.19 = 360,276,972.05 : x
  2. Step 2: Convert to fraction form
    912,969,966.85/1,368,602,981.19 = 360,276,972.05/x
  3. Step 3: Cross multiply
    912,969,966.85x = 1,368,602,981.19 × 360,276,972.05
  4. Step 4: Simplify right side
    912,969,966.85x = 493,076,138,001,736,320
  5. Step 5: Solve for x
    x = 493,076,138,001,736,320/912,969,966.85
  6. Step 6: Final answer
    x = 540,079,253.32

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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.