Home / 72,718,311.60-109,077,467.40-45,508,532.40

Finding the Fourth Proportional to 72,718,311.60, 109,077,467.40 and 45,508,532.40

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Solution

The fourth proportional to 72,718,311.60, 109,077,467.40 and 45,508,532.40 is: 68,262,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,718,311.60 : 109,077,467.40 = 45,508,532.40 : x
  2. Step 2: Convert to fraction form
    72,718,311.60/109,077,467.40 = 45,508,532.40/x
  3. Step 3: Cross multiply
    72,718,311.60x = 109,077,467.40 × 45,508,532.40
  4. Step 4: Simplify right side
    72,718,311.60x = 4,963,955,459,282,844
  5. Step 5: Solve for x
    x = 4,963,955,459,282,844/72,718,311.60
  6. Step 6: Final answer
    x = 68,262,798.60

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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.