Home / 42,993,692.21-64,426,765.37-31,578,339.53

Finding the Fourth Proportional to 42,993,692.21, 64,426,765.37 and 31,578,339.53

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Solution

The fourth proportional to 42,993,692.21, 64,426,765.37 and 31,578,339.53 is: 47,320,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,993,692.21 : 64,426,765.37 = 31,578,339.53 : x
  2. Step 2: Convert to fraction form
    42,993,692.21/64,426,765.37 = 31,578,339.53/x
  3. Step 3: Cross multiply
    42,993,692.21x = 64,426,765.37 × 31,578,339.53
  4. Step 4: Simplify right side
    42,993,692.21x = 2,034,490,271,676,681.25
  5. Step 5: Solve for x
    x = 2,034,490,271,676,681.25/42,993,692.21
  6. Step 6: Final answer
    x = 47,320,668.85

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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.