Home / 28,242,305.57-38,972,242.77-15,850,005.63

Finding the Fourth Proportional to 28,242,305.57, 38,972,242.77 and 15,850,005.63

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Solution

The fourth proportional to 28,242,305.57, 38,972,242.77 and 15,850,005.63 is: 21,871,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242,305.57 : 38,972,242.77 = 15,850,005.63 : x
  2. Step 2: Convert to fraction form
    28,242,305.57/38,972,242.77 = 15,850,005.63/x
  3. Step 3: Cross multiply
    28,242,305.57x = 38,972,242.77 × 15,850,005.63
  4. Step 4: Simplify right side
    28,242,305.57x = 617,710,267,472,402.88
  5. Step 5: Solve for x
    x = 617,710,267,472,402.88/28,242,305.57
  6. Step 6: Final answer
    x = 21,871,807.39

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1.5x scale

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.