Home / 622,047,373.12-858,428,300.69-339,793,729.76

Finding the Fourth Proportional to 622,047,373.12, 858,428,300.69 and 339,793,729.76

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Solution

The fourth proportional to 622,047,373.12, 858,428,300.69 and 339,793,729.76 is: 468,916,945.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,047,373.12 : 858,428,300.69 = 339,793,729.76 : x
  2. Step 2: Convert to fraction form
    622,047,373.12/858,428,300.69 = 339,793,729.76/x
  3. Step 3: Cross multiply
    622,047,373.12x = 858,428,300.69 × 339,793,729.76
  4. Step 4: Simplify right side
    622,047,373.12x = 291,688,554,023,721,536
  5. Step 5: Solve for x
    x = 291,688,554,023,721,536/622,047,373.12
  6. Step 6: Final answer
    x = 468,916,945.28

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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.