Home / 70,021,582.32-105,047,988.66-21,504,332.82

Finding the Fourth Proportional to 70,021,582.32, 105,047,988.66 and 21,504,332.82

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Solution

The fourth proportional to 70,021,582.32, 105,047,988.66 and 21,504,332.82 is: 32,261,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,021,582.32 : 105,047,988.66 = 21,504,332.82 : x
  2. Step 2: Convert to fraction form
    70,021,582.32/105,047,988.66 = 21,504,332.82/x
  3. Step 3: Cross multiply
    70,021,582.32x = 105,047,988.66 × 21,504,332.82
  4. Step 4: Simplify right side
    70,021,582.32x = 2,258,986,910,216,226
  5. Step 5: Solve for x
    x = 2,258,986,910,216,226/70,021,582.32
  6. Step 6: Final answer
    x = 32,261,294.81

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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.