Home / 109,117,036.92-150,778,482.72-77,700,543

Finding the Fourth Proportional to 109,117,036.92, 150,778,482.72 and 77,700,543

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Solution

The fourth proportional to 109,117,036.92, 150,778,482.72 and 77,700,543 is: 107,367,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,117,036.92 : 150,778,482.72 = 77,700,543 : x
  2. Step 2: Convert to fraction form
    109,117,036.92/150,778,482.72 = 77,700,543/x
  3. Step 3: Cross multiply
    109,117,036.92x = 150,778,482.72 × 77,700,543
  4. Step 4: Simplify right side
    109,117,036.92x = 11,715,569,980,060,116
  5. Step 5: Solve for x
    x = 11,715,569,980,060,116/109,117,036.92
  6. Step 6: Final answer
    x = 107,367,009.87

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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.