Home / 7,638,831.48-10,569,345.54-6,660,809.76

Finding the Fourth Proportional to 7,638,831.48, 10,569,345.54 and 6,660,809.76

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Solution

The fourth proportional to 7,638,831.48, 10,569,345.54 and 6,660,809.76 is: 9,216,121.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638,831.48 : 10,569,345.54 = 6,660,809.76 : x
  2. Step 2: Convert to fraction form
    7,638,831.48/10,569,345.54 = 6,660,809.76/x
  3. Step 3: Cross multiply
    7,638,831.48x = 10,569,345.54 × 6,660,809.76
  4. Step 4: Simplify right side
    7,638,831.48x = 70,400,399,929,644.47
  5. Step 5: Solve for x
    x = 70,400,399,929,644.47/7,638,831.48
  6. Step 6: Final answer
    x = 9,216,121.62

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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.