Home / 85,705,876.68-128,525,916.06-36,490,526.16

Finding the Fourth Proportional to 85,705,876.68, 128,525,916.06 and 36,490,526.16

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Solution

The fourth proportional to 85,705,876.68, 128,525,916.06 and 36,490,526.16 is: 54,721,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,705,876.68 : 128,525,916.06 = 36,490,526.16 : x
  2. Step 2: Convert to fraction form
    85,705,876.68/128,525,916.06 = 36,490,526.16/x
  3. Step 3: Cross multiply
    85,705,876.68x = 128,525,916.06 × 36,490,526.16
  4. Step 4: Simplify right side
    85,705,876.68x = 4,689,978,302,225,394
  5. Step 5: Solve for x
    x = 4,689,978,302,225,394/85,705,876.68
  6. Step 6: Final answer
    x = 54,721,782.03

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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.