Home / 472,862,003.60-709,293,005.40-387,831,443.60

Finding the Fourth Proportional to 472,862,003.60, 709,293,005.40 and 387,831,443.60

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Solution

The fourth proportional to 472,862,003.60, 709,293,005.40 and 387,831,443.60 is: 581,747,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,862,003.60 : 709,293,005.40 = 387,831,443.60 : x
  2. Step 2: Convert to fraction form
    472,862,003.60/709,293,005.40 = 387,831,443.60/x
  3. Step 3: Cross multiply
    472,862,003.60x = 709,293,005.40 × 387,831,443.60
  4. Step 4: Simplify right side
    472,862,003.60x = 275,086,130,219,664,608
  5. Step 5: Solve for x
    x = 275,086,130,219,664,608/472,862,003.60
  6. Step 6: Final answer
    x = 581,747,165.40

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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.