Home / 78,725,941.77-118,080,939.60-21,224,025.57

Finding the Fourth Proportional to 78,725,941.77, 118,080,939.60 and 21,224,025.57

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Solution

The fourth proportional to 78,725,941.77, 118,080,939.60 and 21,224,025.57 is: 31,833,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,725,941.77 : 118,080,939.60 = 21,224,025.57 : x
  2. Step 2: Convert to fraction form
    78,725,941.77/118,080,939.60 = 21,224,025.57/x
  3. Step 3: Cross multiply
    78,725,941.77x = 118,080,939.60 × 21,224,025.57
  4. Step 4: Simplify right side
    78,725,941.77x = 2,506,152,881,400,025.50
  5. Step 5: Solve for x
    x = 2,506,152,881,400,025.50/78,725,941.77
  6. Step 6: Final answer
    x = 31,833,888.87

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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.