Home / 7,212,921.50-9,953,831.76-4,157,332.58

Finding the Fourth Proportional to 7,212,921.50, 9,953,831.76 and 4,157,332.58

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Solution

The fourth proportional to 7,212,921.50, 9,953,831.76 and 4,157,332.58 is: 5,737,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212,921.50 : 9,953,831.76 = 4,157,332.58 : x
  2. Step 2: Convert to fraction form
    7,212,921.50/9,953,831.76 = 4,157,332.58/x
  3. Step 3: Cross multiply
    7,212,921.50x = 9,953,831.76 × 4,157,332.58
  4. Step 4: Simplify right side
    7,212,921.50x = 41,381,389,071,686.74
  5. Step 5: Solve for x
    x = 41,381,389,071,686.74/7,212,921.50
  6. Step 6: Final answer
    x = 5,737,119.01

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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.