Home / 42,005,321.95-63,017,237.01-12,859,381.40

Finding the Fourth Proportional to 42,005,321.95, 63,017,237.01 and 12,859,381.40

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Solution

The fourth proportional to 42,005,321.95, 63,017,237.01 and 12,859,381.40 is: 19,291,905.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005,321.95 : 63,017,237.01 = 12,859,381.40 : x
  2. Step 2: Convert to fraction form
    42,005,321.95/63,017,237.01 = 12,859,381.40/x
  3. Step 3: Cross multiply
    42,005,321.95x = 63,017,237.01 × 12,859,381.40
  4. Step 4: Simplify right side
    42,005,321.95x = 810,362,685,485,785.62
  5. Step 5: Solve for x
    x = 810,362,685,485,785.62/42,005,321.95
  6. Step 6: Final answer
    x = 19,291,905.12

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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.