Home / 42,768,015.30-64,152,022.95-20,051,208.90

Finding the Fourth Proportional to 42,768,015.30, 64,152,022.95 and 20,051,208.90

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Solution

The fourth proportional to 42,768,015.30, 64,152,022.95 and 20,051,208.90 is: 30,076,813.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,015.30 : 64,152,022.95 = 20,051,208.90 : x
  2. Step 2: Convert to fraction form
    42,768,015.30/64,152,022.95 = 20,051,208.90/x
  3. Step 3: Cross multiply
    42,768,015.30x = 64,152,022.95 × 20,051,208.90
  4. Step 4: Simplify right side
    42,768,015.30x = 1,286,325,613,528,044.25
  5. Step 5: Solve for x
    x = 1,286,325,613,528,044.25/42,768,015.30
  6. Step 6: Final answer
    x = 30,076,813.35

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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.