Home / 99,849,987.80-149,774,981.70-79,694,595.80

Finding the Fourth Proportional to 99,849,987.80, 149,774,981.70 and 79,694,595.80

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Solution

The fourth proportional to 99,849,987.80, 149,774,981.70 and 79,694,595.80 is: 119,541,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,849,987.80 : 149,774,981.70 = 79,694,595.80 : x
  2. Step 2: Convert to fraction form
    99,849,987.80/149,774,981.70 = 79,694,595.80/x
  3. Step 3: Cross multiply
    99,849,987.80x = 149,774,981.70 × 79,694,595.80
  4. Step 4: Simplify right side
    99,849,987.80x = 11,936,256,627,533,896
  5. Step 5: Solve for x
    x = 11,936,256,627,533,896/99,849,987.80
  6. Step 6: Final answer
    x = 119,541,893.70

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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.