Home / 99,849,938.20-149,774,907.30-83,725,624.60

Finding the Fourth Proportional to 99,849,938.20, 149,774,907.30 and 83,725,624.60

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Solution

The fourth proportional to 99,849,938.20, 149,774,907.30 and 83,725,624.60 is: 125,588,436.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,849,938.20 : 149,774,907.30 = 83,725,624.60 : x
  2. Step 2: Convert to fraction form
    99,849,938.20/149,774,907.30 = 83,725,624.60/x
  3. Step 3: Cross multiply
    99,849,938.20x = 149,774,907.30 × 83,725,624.60
  4. Step 4: Simplify right side
    99,849,938.20x = 12,539,997,663,099,600
  5. Step 5: Solve for x
    x = 12,539,997,663,099,600/99,849,938.20
  6. Step 6: Final answer
    x = 125,588,436.90

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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.