Home / 83,047,638.05-124,571,457.08-78,264,669.05

Finding the Fourth Proportional to 83,047,638.05, 124,571,457.08 and 78,264,669.05

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Solution

The fourth proportional to 83,047,638.05, 124,571,457.08 and 78,264,669.05 is: 117,397,003.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,047,638.05 : 124,571,457.08 = 78,264,669.05 : x
  2. Step 2: Convert to fraction form
    83,047,638.05/124,571,457.08 = 78,264,669.05/x
  3. Step 3: Cross multiply
    83,047,638.05x = 124,571,457.08 × 78,264,669.05
  4. Step 4: Simplify right side
    83,047,638.05x = 9,749,543,861,051,156
  5. Step 5: Solve for x
    x = 9,749,543,861,051,156/83,047,638.05
  6. Step 6: Final answer
    x = 117,397,003.58

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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.