Home / 702,113,320.64-968,919,619.23-388,840,967.12

Finding the Fourth Proportional to 702,113,320.64, 968,919,619.23 and 388,840,967.12

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Solution

The fourth proportional to 702,113,320.64, 968,919,619.23 and 388,840,967.12 is: 536,602,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,113,320.64 : 968,919,619.23 = 388,840,967.12 : x
  2. Step 2: Convert to fraction form
    702,113,320.64/968,919,619.23 = 388,840,967.12/x
  3. Step 3: Cross multiply
    702,113,320.64x = 968,919,619.23 × 388,840,967.12
  4. Step 4: Simplify right side
    702,113,320.64x = 376,755,641,802,935,360
  5. Step 5: Solve for x
    x = 376,755,641,802,935,360/702,113,320.64
  6. Step 6: Final answer
    x = 536,602,327.18

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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.