Home / 731,181,221.45-1,009,030,085.63-417,922,161.55

Finding the Fourth Proportional to 731,181,221.45, 1,009,030,085.63 and 417,922,161.55

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Solution

The fourth proportional to 731,181,221.45, 1,009,030,085.63 and 417,922,161.55 is: 576,732,582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,181,221.45 : 1,009,030,085.63 = 417,922,161.55 : x
  2. Step 2: Convert to fraction form
    731,181,221.45/1,009,030,085.63 = 417,922,161.55/x
  3. Step 3: Cross multiply
    731,181,221.45x = 1,009,030,085.63 × 417,922,161.55
  4. Step 4: Simplify right side
    731,181,221.45x = 421,696,034,450,859,008
  5. Step 5: Solve for x
    x = 421,696,034,450,859,008/731,181,221.45
  6. Step 6: Final answer
    x = 576,732,582.95

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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.