Home / 109,116,774.23-150,778,120.64-77,700,280.70

Finding the Fourth Proportional to 109,116,774.23, 150,778,120.64 and 77,700,280.70

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Solution

The fourth proportional to 109,116,774.23, 150,778,120.64 and 77,700,280.70 is: 107,366,648.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,116,774.23 : 150,778,120.64 = 77,700,280.70 : x
  2. Step 2: Convert to fraction form
    109,116,774.23/150,778,120.64 = 77,700,280.70/x
  3. Step 3: Cross multiply
    109,116,774.23x = 150,778,120.64 × 77,700,280.70
  4. Step 4: Simplify right side
    109,116,774.23x = 11,715,502,296,004,070
  5. Step 5: Solve for x
    x = 11,715,502,296,004,070/109,116,774.23
  6. Step 6: Final answer
    x = 107,366,648.06

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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.