Home / 718,368,760,620.05-991,355,071,832.16-409,735,752,756.50

Finding the Fourth Proportional to 718,368,760,620.05, 991,355,071,832.16 and 409,735,752,756.50

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Solution

The fourth proportional to 718,368,760,620.05, 991,355,071,832.16 and 409,735,752,756.50 is: 565,438,864,929.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,368,760,620.05 : 991,355,071,832.16 = 409,735,752,756.50 : x
  2. Step 2: Convert to fraction form
    718,368,760,620.05/991,355,071,832.16 = 409,735,752,756.50/x
  3. Step 3: Cross multiply
    718,368,760,620.05x = 991,355,071,832.16 × 409,735,752,756.50
  4. Step 4: Simplify right side
    718,368,760,620.05x = 406,193,616,606,124,209,864,704
  5. Step 5: Solve for x
    x = 406,193,616,606,124,209,864,704/718,368,760,620.05
  6. Step 6: Final answer
    x = 565,438,864,929.93

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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.