Home / 118,573,280.20-177,859,920.30-77,889,831.40

Finding the Fourth Proportional to 118,573,280.20, 177,859,920.30 and 77,889,831.40

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Solution

The fourth proportional to 118,573,280.20, 177,859,920.30 and 77,889,831.40 is: 116,834,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,573,280.20 : 177,859,920.30 = 77,889,831.40 : x
  2. Step 2: Convert to fraction form
    118,573,280.20/177,859,920.30 = 77,889,831.40/x
  3. Step 3: Cross multiply
    118,573,280.20x = 177,859,920.30 × 77,889,831.40
  4. Step 4: Simplify right side
    118,573,280.20x = 13,853,479,204,984,440
  5. Step 5: Solve for x
    x = 13,853,479,204,984,440/118,573,280.20
  6. Step 6: Final answer
    x = 116,834,747.10

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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.