Home / 638,858,236.12-881,632,931.92-360,398,898.52

Finding the Fourth Proportional to 638,858,236.12, 881,632,931.92 and 360,398,898.52

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Solution

The fourth proportional to 638,858,236.12, 881,632,931.92 and 360,398,898.52 is: 497,355,312.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,858,236.12 : 881,632,931.92 = 360,398,898.52 : x
  2. Step 2: Convert to fraction form
    638,858,236.12/881,632,931.92 = 360,398,898.52/x
  3. Step 3: Cross multiply
    638,858,236.12x = 881,632,931.92 × 360,398,898.52
  4. Step 4: Simplify right side
    638,858,236.12x = 317,739,537,559,821,056
  5. Step 5: Solve for x
    x = 317,739,537,559,821,056/638,858,236.12
  6. Step 6: Final answer
    x = 497,355,312.33

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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.