Home / 93,321,831.20-139,737,802.80-65,879,938.40

Finding the Fourth Proportional to 93,321,831.20, 139,737,802.80 and 65,879,938.40

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Solution

The fourth proportional to 93,321,831.20, 139,737,802.80 and 65,879,938.40 is: 98,646,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,321,831.20 : 139,737,802.80 = 65,879,938.40 : x
  2. Step 2: Convert to fraction form
    93,321,831.20/139,737,802.80 = 65,879,938.40/x
  3. Step 3: Cross multiply
    93,321,831.20x = 139,737,802.80 × 65,879,938.40
  4. Step 4: Simplify right side
    93,321,831.20x = 9,205,917,840,615,348
  5. Step 5: Solve for x
    x = 9,205,917,840,615,348/93,321,831.20
  6. Step 6: Final answer
    x = 98,646,990.98

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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.