Home / 672,740,231.60-1,009,110,347.40-661,402,823.60

Finding the Fourth Proportional to 672,740,231.60, 1,009,110,347.40 and 661,402,823.60

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Solution

The fourth proportional to 672,740,231.60, 1,009,110,347.40 and 661,402,823.60 is: 992,104,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,740,231.60 : 1,009,110,347.40 = 661,402,823.60 : x
  2. Step 2: Convert to fraction form
    672,740,231.60/1,009,110,347.40 = 661,402,823.60/x
  3. Step 3: Cross multiply
    672,740,231.60x = 1,009,110,347.40 × 661,402,823.60
  4. Step 4: Simplify right side
    672,740,231.60x = 667,428,433,094,336,896
  5. Step 5: Solve for x
    x = 667,428,433,094,336,896/672,740,231.60
  6. Step 6: Final answer
    x = 992,104,235.40

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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.