Home / 718,368,760,621.05-991,355,071,833.54-409,735,752,757.50

Finding the Fourth Proportional to 718,368,760,621.05, 991,355,071,833.54 and 409,735,752,757.50

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Solution

The fourth proportional to 718,368,760,621.05, 991,355,071,833.54 and 409,735,752,757.50 is: 565,438,864,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,368,760,621.05 : 991,355,071,833.54 = 409,735,752,757.50 : x
  2. Step 2: Convert to fraction form
    718,368,760,621.05/991,355,071,833.54 = 409,735,752,757.50/x
  3. Step 3: Cross multiply
    718,368,760,621.05x = 991,355,071,833.54 × 409,735,752,757.50
  4. Step 4: Simplify right side
    718,368,760,621.05x = 406,193,616,607,681,001,291,776
  5. Step 5: Solve for x
    x = 406,193,616,607,681,001,291,776/718,368,760,621.05
  6. Step 6: Final answer
    x = 565,438,864,931.31

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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.