Home / 85,987,389.93-128,853,538.98-63,156,684.57

Finding the Fourth Proportional to 85,987,389.93, 128,853,538.98 and 63,156,684.57

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Solution

The fourth proportional to 85,987,389.93, 128,853,538.98 and 63,156,684.57 is: 94,641,345.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,987,389.93 : 128,853,538.98 = 63,156,684.57 : x
  2. Step 2: Convert to fraction form
    85,987,389.93/128,853,538.98 = 63,156,684.57/x
  3. Step 3: Cross multiply
    85,987,389.93x = 128,853,538.98 × 63,156,684.57
  4. Step 4: Simplify right side
    85,987,389.93x = 8,137,962,317,088,060
  5. Step 5: Solve for x
    x = 8,137,962,317,088,060/85,987,389.93
  6. Step 6: Final answer
    x = 94,641,345.94

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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.