Home / 30,985,261.69-42,758,802.60-16,855,979.71

Finding the Fourth Proportional to 30,985,261.69, 42,758,802.60 and 16,855,979.71

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Solution

The fourth proportional to 30,985,261.69, 42,758,802.60 and 16,855,979.71 is: 23,260,784.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985,261.69 : 42,758,802.60 = 16,855,979.71 : x
  2. Step 2: Convert to fraction form
    30,985,261.69/42,758,802.60 = 16,855,979.71/x
  3. Step 3: Cross multiply
    30,985,261.69x = 42,758,802.60 × 16,855,979.71
  4. Step 4: Simplify right side
    30,985,261.69x = 720,741,509,049,495.25
  5. Step 5: Solve for x
    x = 720,741,509,049,495.25/30,985,261.69
  6. Step 6: Final answer
    x = 23,260,784.96

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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.