Home / 131,915,206.40-197,872,809.60-99,178,440.80

Finding the Fourth Proportional to 131,915,206.40, 197,872,809.60 and 99,178,440.80

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Solution

The fourth proportional to 131,915,206.40, 197,872,809.60 and 99,178,440.80 is: 148,767,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,915,206.40 : 197,872,809.60 = 99,178,440.80 : x
  2. Step 2: Convert to fraction form
    131,915,206.40/197,872,809.60 = 99,178,440.80/x
  3. Step 3: Cross multiply
    131,915,206.40x = 197,872,809.60 × 99,178,440.80
  4. Step 4: Simplify right side
    131,915,206.40x = 19,624,716,732,843,272
  5. Step 5: Solve for x
    x = 19,624,716,732,843,272/131,915,206.40
  6. Step 6: Final answer
    x = 148,767,661.20

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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.