Home / 30,669,795.16-42,316,768.38-18,745,590.76

Finding the Fourth Proportional to 30,669,795.16, 42,316,768.38 and 18,745,590.76

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Solution

The fourth proportional to 30,669,795.16, 42,316,768.38 and 18,745,590.76 is: 25,864,301.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,669,795.16 : 42,316,768.38 = 18,745,590.76 : x
  2. Step 2: Convert to fraction form
    30,669,795.16/42,316,768.38 = 18,745,590.76/x
  3. Step 3: Cross multiply
    30,669,795.16x = 42,316,768.38 × 18,745,590.76
  4. Step 4: Simplify right side
    30,669,795.16x = 793,252,822,337,188.25
  5. Step 5: Solve for x
    x = 793,252,822,337,188.25/30,669,795.16
  6. Step 6: Final answer
    x = 25,864,301.28

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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.