Home / 153,923,729.90-212,412,123.04-83,358,767.48

Finding the Fourth Proportional to 153,923,729.90, 212,412,123.04 and 83,358,767.48

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Solution

The fourth proportional to 153,923,729.90, 212,412,123.04 and 83,358,767.48 is: 115,033,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,923,729.90 : 212,412,123.04 = 83,358,767.48 : x
  2. Step 2: Convert to fraction form
    153,923,729.90/212,412,123.04 = 83,358,767.48/x
  3. Step 3: Cross multiply
    153,923,729.90x = 212,412,123.04 × 83,358,767.48
  4. Step 4: Simplify right side
    153,923,729.90x = 17,706,412,774,424,510
  5. Step 5: Solve for x
    x = 17,706,412,774,424,510/153,923,729.90
  6. Step 6: Final answer
    x = 115,033,677.95

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1.5x scale

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.