Home / 30,450,111.32-42,017,281.80-17,398,215.20

Finding the Fourth Proportional to 30,450,111.32, 42,017,281.80 and 17,398,215.20

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Solution

The fourth proportional to 30,450,111.32, 42,017,281.80 and 17,398,215.20 is: 24,007,324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,450,111.32 : 42,017,281.80 = 17,398,215.20 : x
  2. Step 2: Convert to fraction form
    30,450,111.32/42,017,281.80 = 17,398,215.20/x
  3. Step 3: Cross multiply
    30,450,111.32x = 42,017,281.80 × 17,398,215.20
  4. Step 4: Simplify right side
    30,450,111.32x = 731,025,710,875,443.25
  5. Step 5: Solve for x
    x = 731,025,710,875,443.25/30,450,111.32
  6. Step 6: Final answer
    x = 24,007,324.74

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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.