Home / 30,802,811.19-42,508,380.77-16,863,931.05

Finding the Fourth Proportional to 30,802,811.19, 42,508,380.77 and 16,863,931.05

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Solution

The fourth proportional to 30,802,811.19, 42,508,380.77 and 16,863,931.05 is: 23,272,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,802,811.19 : 42,508,380.77 = 16,863,931.05 : x
  2. Step 2: Convert to fraction form
    30,802,811.19/42,508,380.77 = 16,863,931.05/x
  3. Step 3: Cross multiply
    30,802,811.19x = 42,508,380.77 × 16,863,931.05
  4. Step 4: Simplify right side
    30,802,811.19x = 716,858,402,268,106.25
  5. Step 5: Solve for x
    x = 716,858,402,268,106.25/30,802,811.19
  6. Step 6: Final answer
    x = 23,272,499.31

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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.