Home / 387,082,402.60-580,623,603.90-99,868,066.60

Finding the Fourth Proportional to 387,082,402.60, 580,623,603.90 and 99,868,066.60

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Solution

The fourth proportional to 387,082,402.60, 580,623,603.90 and 99,868,066.60 is: 149,802,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,082,402.60 : 580,623,603.90 = 99,868,066.60 : x
  2. Step 2: Convert to fraction form
    387,082,402.60/580,623,603.90 = 99,868,066.60/x
  3. Step 3: Cross multiply
    387,082,402.60x = 580,623,603.90 × 99,868,066.60
  4. Step 4: Simplify right side
    387,082,402.60x = 57,985,756,743,817,216
  5. Step 5: Solve for x
    x = 57,985,756,743,817,216/387,082,402.60
  6. Step 6: Final answer
    x = 149,802,099.90

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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.