Home / 99,435,640.80-148,901,518.80-79,280,248.80

Finding the Fourth Proportional to 99,435,640.80, 148,901,518.80 and 79,280,248.80

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Solution

The fourth proportional to 99,435,640.80, 148,901,518.80 and 79,280,248.80 is: 118,719,498.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,435,640.80 : 148,901,518.80 = 79,280,248.80 : x
  2. Step 2: Convert to fraction form
    99,435,640.80/148,901,518.80 = 79,280,248.80/x
  3. Step 3: Cross multiply
    99,435,640.80x = 148,901,518.80 × 79,280,248.80
  4. Step 4: Simplify right side
    99,435,640.80x = 11,804,949,457,161,878
  5. Step 5: Solve for x
    x = 11,804,949,457,161,878/99,435,640.80
  6. Step 6: Final answer
    x = 118,719,498.99

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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.