Home / 30,900,302.78-42,642,464.55-16,771,494.32

Finding the Fourth Proportional to 30,900,302.78, 42,642,464.55 and 16,771,494.32

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Solution

The fourth proportional to 30,900,302.78, 42,642,464.55 and 16,771,494.32 is: 23,144,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,900,302.78 : 42,642,464.55 = 16,771,494.32 : x
  2. Step 2: Convert to fraction form
    30,900,302.78/42,642,464.55 = 16,771,494.32/x
  3. Step 3: Cross multiply
    30,900,302.78x = 42,642,464.55 × 16,771,494.32
  4. Step 4: Simplify right side
    30,900,302.78x = 715,177,852,097,732.50
  5. Step 5: Solve for x
    x = 715,177,852,097,732.50/30,900,302.78
  6. Step 6: Final answer
    x = 23,144,687.52

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1.5x scale

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.