Home / 972,949,931.87-1,342,654,311.24-526,909,670.78

Finding the Fourth Proportional to 972,949,931.87, 1,342,654,311.24 and 526,909,670.78

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Solution

The fourth proportional to 972,949,931.87, 1,342,654,311.24 and 526,909,670.78 is: 727,126,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,949,931.87 : 1,342,654,311.24 = 526,909,670.78 : x
  2. Step 2: Convert to fraction form
    972,949,931.87/1,342,654,311.24 = 526,909,670.78/x
  3. Step 3: Cross multiply
    972,949,931.87x = 1,342,654,311.24 × 526,909,670.78
  4. Step 4: Simplify right side
    972,949,931.87x = 707,457,541,100,102,784
  5. Step 5: Solve for x
    x = 707,457,541,100,102,784/972,949,931.87
  6. Step 6: Final answer
    x = 727,126,358.64

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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.