Home / 72,321,224.16-99,804,021.84-39,282,118.50

Finding the Fourth Proportional to 72,321,224.16, 99,804,021.84 and 39,282,118.50

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Solution

The fourth proportional to 72,321,224.16, 99,804,021.84 and 39,282,118.50 is: 54,209,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,321,224.16 : 99,804,021.84 = 39,282,118.50 : x
  2. Step 2: Convert to fraction form
    72,321,224.16/99,804,021.84 = 39,282,118.50/x
  3. Step 3: Cross multiply
    72,321,224.16x = 99,804,021.84 × 39,282,118.50
  4. Step 4: Simplify right side
    72,321,224.16x = 3,920,513,412,695,468
  5. Step 5: Solve for x
    x = 3,920,513,412,695,468/72,321,224.16
  6. Step 6: Final answer
    x = 54,209,721.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.