Home / 749,153,865.60-1,123,282,900.80-386,356,809.60

Finding the Fourth Proportional to 749,153,865.60, 1,123,282,900.80 and 386,356,809.60

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Solution

The fourth proportional to 749,153,865.60, 1,123,282,900.80 and 386,356,809.60 is: 579,304,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,153,865.60 : 1,123,282,900.80 = 386,356,809.60 : x
  2. Step 2: Convert to fraction form
    749,153,865.60/1,123,282,900.80 = 386,356,809.60/x
  3. Step 3: Cross multiply
    749,153,865.60x = 1,123,282,900.80 × 386,356,809.60
  4. Step 4: Simplify right side
    749,153,865.60x = 433,987,997,831,321,280
  5. Step 5: Solve for x
    x = 433,987,997,831,321,280/749,153,865.60
  6. Step 6: Final answer
    x = 579,304,222.75

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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.