Home / 680,618,641.68-1,020,322,271.52-266,001,174.72

Finding the Fourth Proportional to 680,618,641.68, 1,020,322,271.52 and 266,001,174.72

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Solution

The fourth proportional to 680,618,641.68, 1,020,322,271.52 and 266,001,174.72 is: 398,765,044.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,618,641.68 : 1,020,322,271.52 = 266,001,174.72 : x
  2. Step 2: Convert to fraction form
    680,618,641.68/1,020,322,271.52 = 266,001,174.72/x
  3. Step 3: Cross multiply
    680,618,641.68x = 1,020,322,271.52 × 266,001,174.72
  4. Step 4: Simplify right side
    680,618,641.68x = 271,406,922,817,298,784
  5. Step 5: Solve for x
    x = 271,406,922,817,298,784/680,618,641.68
  6. Step 6: Final answer
    x = 398,765,044.32

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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.