Home / 78,248,461.95-117,372,692.93-39,984,709.95

Finding the Fourth Proportional to 78,248,461.95, 117,372,692.93 and 39,984,709.95

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Solution

The fourth proportional to 78,248,461.95, 117,372,692.93 and 39,984,709.95 is: 59,977,064.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,248,461.95 : 117,372,692.93 = 39,984,709.95 : x
  2. Step 2: Convert to fraction form
    78,248,461.95/117,372,692.93 = 39,984,709.95/x
  3. Step 3: Cross multiply
    78,248,461.95x = 117,372,692.93 × 39,984,709.95
  4. Step 4: Simplify right side
    78,248,461.95x = 4,693,113,082,656,542
  5. Step 5: Solve for x
    x = 4,693,113,082,656,542/78,248,461.95
  6. Step 6: Final answer
    x = 59,977,064.93

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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.