Home / 722,268,959.16-996,731,307.65-440,011,389.63

Finding the Fourth Proportional to 722,268,959.16, 996,731,307.65 and 440,011,389.63

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Solution

The fourth proportional to 722,268,959.16, 996,731,307.65 and 440,011,389.63 is: 607,215,805.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,268,959.16 : 996,731,307.65 = 440,011,389.63 : x
  2. Step 2: Convert to fraction form
    722,268,959.16/996,731,307.65 = 440,011,389.63/x
  3. Step 3: Cross multiply
    722,268,959.16x = 996,731,307.65 × 440,011,389.63
  4. Step 4: Simplify right side
    722,268,959.16x = 438,573,127,764,152,960
  5. Step 5: Solve for x
    x = 438,573,127,764,152,960/722,268,959.16
  6. Step 6: Final answer
    x = 607,215,805.42

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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.