Home / 639,077,278.24-881,918,021-356,824,066.64

Finding the Fourth Proportional to 639,077,278.24, 881,918,021 and 356,824,066.64

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Solution

The fourth proportional to 639,077,278.24, 881,918,021 and 356,824,066.64 is: 492,412,397.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,077,278.24 : 881,918,021 = 356,824,066.64 : x
  2. Step 2: Convert to fraction form
    639,077,278.24/881,918,021 = 356,824,066.64/x
  3. Step 3: Cross multiply
    639,077,278.24x = 881,918,021 × 356,824,066.64
  4. Step 4: Simplify right side
    639,077,278.24x = 314,689,574,696,320,896
  5. Step 5: Solve for x
    x = 314,689,574,696,320,896/639,077,278.24
  6. Step 6: Final answer
    x = 492,412,397.39

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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.