Home / 402,845,218,873.28-556,177,291,878.24-256,440,287,293.76

Finding the Fourth Proportional to 402,845,218,873.28, 556,177,291,878.24 and 256,440,287,293.76

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Solution

The fourth proportional to 402,845,218,873.28, 556,177,291,878.24 and 256,440,287,293.76 is: 354,047,306,095.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,845,218,873.28 : 556,177,291,878.24 = 256,440,287,293.76 : x
  2. Step 2: Convert to fraction form
    402,845,218,873.28/556,177,291,878.24 = 256,440,287,293.76/x
  3. Step 3: Cross multiply
    402,845,218,873.28x = 556,177,291,878.24 × 256,440,287,293.76
  4. Step 4: Simplify right side
    402,845,218,873.28x = 142,626,264,515,521,284,145,152
  5. Step 5: Solve for x
    x = 142,626,264,515,521,284,145,152/402,845,218,873.28
  6. Step 6: Final answer
    x = 354,047,306,095.46

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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.