Home / 13,440,742.70-20,161,114.05-7,772,038.70

Finding the Fourth Proportional to 13,440,742.70, 20,161,114.05 and 7,772,038.70

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Solution

The fourth proportional to 13,440,742.70, 20,161,114.05 and 7,772,038.70 is: 11,658,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440,742.70 : 20,161,114.05 = 7,772,038.70 : x
  2. Step 2: Convert to fraction form
    13,440,742.70/20,161,114.05 = 7,772,038.70/x
  3. Step 3: Cross multiply
    13,440,742.70x = 20,161,114.05 × 7,772,038.70
  4. Step 4: Simplify right side
    13,440,742.70x = 156,692,958,631,713.75
  5. Step 5: Solve for x
    x = 156,692,958,631,713.75/13,440,742.70
  6. Step 6: Final answer
    x = 11,658,058.05

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1.5x scale

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.