Home / 136,457,492.02-188,402,236.42-80,720,818

Finding the Fourth Proportional to 136,457,492.02, 188,402,236.42 and 80,720,818

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Solution

The fourth proportional to 136,457,492.02, 188,402,236.42 and 80,720,818 is: 111,448,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,457,492.02 : 188,402,236.42 = 80,720,818 : x
  2. Step 2: Convert to fraction form
    136,457,492.02/188,402,236.42 = 80,720,818/x
  3. Step 3: Cross multiply
    136,457,492.02x = 188,402,236.42 × 80,720,818
  4. Step 4: Simplify right side
    136,457,492.02x = 15,207,982,636,851,790
  5. Step 5: Solve for x
    x = 15,207,982,636,851,790/136,457,492.02
  6. Step 6: Final answer
    x = 111,448,498.81

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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.