Home / 145,220,603.60-217,830,905.40-127,647,621.20

Finding the Fourth Proportional to 145,220,603.60, 217,830,905.40 and 127,647,621.20

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Solution

The fourth proportional to 145,220,603.60, 217,830,905.40 and 127,647,621.20 is: 191,471,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220,603.60 : 217,830,905.40 = 127,647,621.20 : x
  2. Step 2: Convert to fraction form
    145,220,603.60/217,830,905.40 = 127,647,621.20/x
  3. Step 3: Cross multiply
    145,220,603.60x = 217,830,905.40 × 127,647,621.20
  4. Step 4: Simplify right side
    145,220,603.60x = 27,805,596,898,152,236
  5. Step 5: Solve for x
    x = 27,805,596,898,152,236/145,220,603.60
  6. Step 6: Final answer
    x = 191,471,431.80

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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.