Home / 1,688,163,009.12-2,329,678,628.64-935,488,758.24

Finding the Fourth Proportional to 1,688,163,009.12, 2,329,678,628.64 and 935,488,758.24

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Solution

The fourth proportional to 1,688,163,009.12, 2,329,678,628.64 and 935,488,758.24 is: 1,290,982,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,163,009.12 : 2,329,678,628.64 = 935,488,758.24 : x
  2. Step 2: Convert to fraction form
    1,688,163,009.12/2,329,678,628.64 = 935,488,758.24/x
  3. Step 3: Cross multiply
    1,688,163,009.12x = 2,329,678,628.64 × 935,488,758.24
  4. Step 4: Simplify right side
    1,688,163,009.12x = 2,179,388,167,404,699,648
  5. Step 5: Solve for x
    x = 2,179,388,167,404,699,648/1,688,163,009.12
  6. Step 6: Final answer
    x = 1,290,982,064.90

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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.