Home / 71,780,330.35-99,057,259.43-40,840,499.63

Finding the Fourth Proportional to 71,780,330.35, 99,057,259.43 and 40,840,499.63

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Solution

The fourth proportional to 71,780,330.35, 99,057,259.43 and 40,840,499.63 is: 56,360,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,780,330.35 : 99,057,259.43 = 40,840,499.63 : x
  2. Step 2: Convert to fraction form
    71,780,330.35/99,057,259.43 = 40,840,499.63/x
  3. Step 3: Cross multiply
    71,780,330.35x = 99,057,259.43 × 40,840,499.63
  4. Step 4: Simplify right side
    71,780,330.35x = 4,045,547,967,296,321.50
  5. Step 5: Solve for x
    x = 4,045,547,967,296,321.50/71,780,330.35
  6. Step 6: Final answer
    x = 56,360,119.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.