Home / 80,477,345.80-120,716,018.70-64,038,104.20

Finding the Fourth Proportional to 80,477,345.80, 120,716,018.70 and 64,038,104.20

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Solution

The fourth proportional to 80,477,345.80, 120,716,018.70 and 64,038,104.20 is: 96,057,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,477,345.80 : 120,716,018.70 = 64,038,104.20 : x
  2. Step 2: Convert to fraction form
    80,477,345.80/120,716,018.70 = 64,038,104.20/x
  3. Step 3: Cross multiply
    80,477,345.80x = 120,716,018.70 × 64,038,104.20
  4. Step 4: Simplify right side
    80,477,345.80x = 7,730,424,984,119,749
  5. Step 5: Solve for x
    x = 7,730,424,984,119,749/80,477,345.80
  6. Step 6: Final answer
    x = 96,057,156.30

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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.