Home / 151,688,828.16-209,329,090.24-82,072,680.96

Finding the Fourth Proportional to 151,688,828.16, 209,329,090.24 and 82,072,680.96

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Solution

The fourth proportional to 151,688,828.16, 209,329,090.24 and 82,072,680.96 is: 113,259,492.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,688,828.16 : 209,329,090.24 = 82,072,680.96 : x
  2. Step 2: Convert to fraction form
    151,688,828.16/209,329,090.24 = 82,072,680.96/x
  3. Step 3: Cross multiply
    151,688,828.16x = 209,329,090.24 × 82,072,680.96
  4. Step 4: Simplify right side
    151,688,828.16x = 17,180,199,638,914,570
  5. Step 5: Solve for x
    x = 17,180,199,638,914,570/151,688,828.16
  6. Step 6: Final answer
    x = 113,259,492.13

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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.