Home / 320,827,243.10-481,240,864.65-78,490,147.10

Finding the Fourth Proportional to 320,827,243.10, 481,240,864.65 and 78,490,147.10

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Solution

The fourth proportional to 320,827,243.10, 481,240,864.65 and 78,490,147.10 is: 117,735,220.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,827,243.10 : 481,240,864.65 = 78,490,147.10 : x
  2. Step 2: Convert to fraction form
    320,827,243.10/481,240,864.65 = 78,490,147.10/x
  3. Step 3: Cross multiply
    320,827,243.10x = 481,240,864.65 × 78,490,147.10
  4. Step 4: Simplify right side
    320,827,243.10x = 37,772,666,256,909,688
  5. Step 5: Solve for x
    x = 37,772,666,256,909,688/320,827,243.10
  6. Step 6: Final answer
    x = 117,735,220.65

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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.