Home / 99,681,135.40-149,360,739.90-56,421,692.20

Finding the Fourth Proportional to 99,681,135.40, 149,360,739.90 and 56,421,692.20

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Solution

The fourth proportional to 99,681,135.40, 149,360,739.90 and 56,421,692.20 is: 84,541,429.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,681,135.40 : 149,360,739.90 = 56,421,692.20 : x
  2. Step 2: Convert to fraction form
    99,681,135.40/149,360,739.90 = 56,421,692.20/x
  3. Step 3: Cross multiply
    99,681,135.40x = 149,360,739.90 × 56,421,692.20
  4. Step 4: Simplify right side
    99,681,135.40x = 8,427,185,693,402,060
  5. Step 5: Solve for x
    x = 8,427,185,693,402,060/99,681,135.40
  6. Step 6: Final answer
    x = 84,541,429.63

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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.