Home / 74,661,488.80-103,032,831.12-40,322,672.80

Finding the Fourth Proportional to 74,661,488.80, 103,032,831.12 and 40,322,672.80

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Solution

The fourth proportional to 74,661,488.80, 103,032,831.12 and 40,322,672.80 is: 55,645,275.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,661,488.80 : 103,032,831.12 = 40,322,672.80 : x
  2. Step 2: Convert to fraction form
    74,661,488.80/103,032,831.12 = 40,322,672.80/x
  3. Step 3: Cross multiply
    74,661,488.80x = 103,032,831.12 × 40,322,672.80
  4. Step 4: Simplify right side
    74,661,488.80x = 4,154,559,136,909,417.50
  5. Step 5: Solve for x
    x = 4,154,559,136,909,417.50/74,661,488.80
  6. Step 6: Final answer
    x = 55,645,275.81

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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.