Home / 30,920,757.76-42,674,583.04-18,697,702.40

Finding the Fourth Proportional to 30,920,757.76, 42,674,583.04 and 18,697,702.40

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Solution

The fourth proportional to 30,920,757.76, 42,674,583.04 and 18,697,702.40 is: 25,805,210.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920,757.76 : 42,674,583.04 = 18,697,702.40 : x
  2. Step 2: Convert to fraction form
    30,920,757.76/42,674,583.04 = 18,697,702.40/x
  3. Step 3: Cross multiply
    30,920,757.76x = 42,674,583.04 × 18,697,702.40
  4. Step 4: Simplify right side
    30,920,757.76x = 797,916,653,726,007.25
  5. Step 5: Solve for x
    x = 797,916,653,726,007.25/30,920,757.76
  6. Step 6: Final answer
    x = 25,805,210.21

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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.