Home / 315,202,831.60-472,804,247.40-99,792,079.60

Finding the Fourth Proportional to 315,202,831.60, 472,804,247.40 and 99,792,079.60

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Solution

The fourth proportional to 315,202,831.60, 472,804,247.40 and 99,792,079.60 is: 149,688,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,202,831.60 : 472,804,247.40 = 99,792,079.60 : x
  2. Step 2: Convert to fraction form
    315,202,831.60/472,804,247.40 = 99,792,079.60/x
  3. Step 3: Cross multiply
    315,202,831.60x = 472,804,247.40 × 99,792,079.60
  4. Step 4: Simplify right side
    315,202,831.60x = 47,182,119,091,758,888
  5. Step 5: Solve for x
    x = 47,182,119,091,758,888/315,202,831.60
  6. Step 6: Final answer
    x = 149,688,119.40

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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.