Home / 109,116,775.23-150,778,122.02-77,700,281.70

Finding the Fourth Proportional to 109,116,775.23, 150,778,122.02 and 77,700,281.70

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Solution

The fourth proportional to 109,116,775.23, 150,778,122.02 and 77,700,281.70 is: 107,366,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,116,775.23 : 150,778,122.02 = 77,700,281.70 : x
  2. Step 2: Convert to fraction form
    109,116,775.23/150,778,122.02 = 77,700,281.70/x
  3. Step 3: Cross multiply
    109,116,775.23x = 150,778,122.02 × 77,700,281.70
  4. Step 4: Simplify right side
    109,116,775.23x = 11,715,502,555,150,974
  5. Step 5: Solve for x
    x = 11,715,502,555,150,974/109,116,775.23
  6. Step 6: Final answer
    x = 107,366,649.45

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1.5x scale

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.