Home / 124,222,692.60-186,334,038.90-85,480,643.70

Finding the Fourth Proportional to 124,222,692.60, 186,334,038.90 and 85,480,643.70

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Solution

The fourth proportional to 124,222,692.60, 186,334,038.90 and 85,480,643.70 is: 128,220,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,222,692.60 : 186,334,038.90 = 85,480,643.70 : x
  2. Step 2: Convert to fraction form
    124,222,692.60/186,334,038.90 = 85,480,643.70/x
  3. Step 3: Cross multiply
    124,222,692.60x = 186,334,038.90 × 85,480,643.70
  4. Step 4: Simplify right side
    124,222,692.60x = 15,927,953,588,392,840
  5. Step 5: Solve for x
    x = 15,927,953,588,392,840/124,222,692.60
  6. Step 6: Final answer
    x = 128,220,965.55

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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.