Home / 7,153,468.32-9,871,692.45-3,890,212.82

Finding the Fourth Proportional to 7,153,468.32, 9,871,692.45 and 3,890,212.82

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Solution

The fourth proportional to 7,153,468.32, 9,871,692.45 and 3,890,212.82 is: 5,368,442.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153,468.32 : 9,871,692.45 = 3,890,212.82 : x
  2. Step 2: Convert to fraction form
    7,153,468.32/9,871,692.45 = 3,890,212.82/x
  3. Step 3: Cross multiply
    7,153,468.32x = 9,871,692.45 × 3,890,212.82
  4. Step 4: Simplify right side
    7,153,468.32x = 38,402,984,497,159.29
  5. Step 5: Solve for x
    x = 38,402,984,497,159.29/7,153,468.32
  6. Step 6: Final answer
    x = 5,368,442.66

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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.