Home / 85,937,682.69-118,368,089.40-66,053,423.19

Finding the Fourth Proportional to 85,937,682.69, 118,368,089.40 and 66,053,423.19

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Solution

The fourth proportional to 85,937,682.69, 118,368,089.40 and 66,053,423.19 is: 90,980,082.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,937,682.69 : 118,368,089.40 = 66,053,423.19 : x
  2. Step 2: Convert to fraction form
    85,937,682.69/118,368,089.40 = 66,053,423.19/x
  3. Step 3: Cross multiply
    85,937,682.69x = 118,368,089.40 × 66,053,423.19
  4. Step 4: Simplify right side
    85,937,682.69x = 7,818,617,501,329,953
  5. Step 5: Solve for x
    x = 7,818,617,501,329,953/85,937,682.69
  6. Step 6: Final answer
    x = 90,980,082.97

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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.