Home / 85,248,024.40-127,872,036.60-83,232,485.20

Finding the Fourth Proportional to 85,248,024.40, 127,872,036.60 and 83,232,485.20

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Solution

The fourth proportional to 85,248,024.40, 127,872,036.60 and 83,232,485.20 is: 124,848,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248,024.40 : 127,872,036.60 = 83,232,485.20 : x
  2. Step 2: Convert to fraction form
    85,248,024.40/127,872,036.60 = 83,232,485.20/x
  3. Step 3: Cross multiply
    85,248,024.40x = 127,872,036.60 × 83,232,485.20
  4. Step 4: Simplify right side
    85,248,024.40x = 10,643,107,393,803,358
  5. Step 5: Solve for x
    x = 10,643,107,393,803,358/85,248,024.40
  6. Step 6: Final answer
    x = 124,848,727.80

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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.