Home / 134,388,409-185,513,329.86-90,360,927.40

Finding the Fourth Proportional to 134,388,409, 185,513,329.86 and 90,360,927.40

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Solution

The fourth proportional to 134,388,409, 185,513,329.86 and 90,360,927.40 is: 124,736,624.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,388,409 : 185,513,329.86 = 90,360,927.40 : x
  2. Step 2: Convert to fraction form
    134,388,409/185,513,329.86 = 90,360,927.40/x
  3. Step 3: Cross multiply
    134,388,409x = 185,513,329.86 × 90,360,927.40
  4. Step 4: Simplify right side
    134,388,409x = 16,763,156,531,211,714
  5. Step 5: Solve for x
    x = 16,763,156,531,211,714/134,388,409
  6. Step 6: Final answer
    x = 124,736,624.65

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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.