Home / 648,739,868.48-895,283,394.72-355,384,462.40

Finding the Fourth Proportional to 648,739,868.48, 895,283,394.72 and 355,384,462.40

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Solution

The fourth proportional to 648,739,868.48, 895,283,394.72 and 355,384,462.40 is: 490,442,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,739,868.48 : 895,283,394.72 = 355,384,462.40 : x
  2. Step 2: Convert to fraction form
    648,739,868.48/895,283,394.72 = 355,384,462.40/x
  3. Step 3: Cross multiply
    648,739,868.48x = 895,283,394.72 × 355,384,462.40
  4. Step 4: Simplify right side
    648,739,868.48x = 318,169,807,928,214,208
  5. Step 5: Solve for x
    x = 318,169,807,928,214,208/648,739,868.48
  6. Step 6: Final answer
    x = 490,442,815.97

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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.