Home / 1,191,577,396.47-1,787,768,333.72-527,499,812.99

Finding the Fourth Proportional to 1,191,577,396.47, 1,787,768,333.72 and 527,499,812.99

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Solution

The fourth proportional to 1,191,577,396.47, 1,787,768,333.72 and 527,499,812.99 is: 791,427,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,577,396.47 : 1,787,768,333.72 = 527,499,812.99 : x
  2. Step 2: Convert to fraction form
    1,191,577,396.47/1,787,768,333.72 = 527,499,812.99/x
  3. Step 3: Cross multiply
    1,191,577,396.47x = 1,787,768,333.72 × 527,499,812.99
  4. Step 4: Simplify right side
    1,191,577,396.47x = 943,047,461,695,167,488
  5. Step 5: Solve for x
    x = 943,047,461,695,167,488/1,191,577,396.47
  6. Step 6: Final answer
    x = 791,427,786.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.