Home / 103,664,328.46-143,055,831.47-56,621,392.15

Finding the Fourth Proportional to 103,664,328.46, 143,055,831.47 and 56,621,392.15

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Solution

The fourth proportional to 103,664,328.46, 143,055,831.47 and 56,621,392.15 is: 78,137,006.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,664,328.46 : 143,055,831.47 = 56,621,392.15 : x
  2. Step 2: Convert to fraction form
    103,664,328.46/143,055,831.47 = 56,621,392.15/x
  3. Step 3: Cross multiply
    103,664,328.46x = 143,055,831.47 × 56,621,392.15
  4. Step 4: Simplify right side
    103,664,328.46x = 8,100,020,332,604,679
  5. Step 5: Solve for x
    x = 8,100,020,332,604,679/103,664,328.46
  6. Step 6: Final answer
    x = 78,137,006.75

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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.