Home / 20,174,430.90-30,261,646.35-17,780,978.10

Finding the Fourth Proportional to 20,174,430.90, 30,261,646.35 and 17,780,978.10

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Solution

The fourth proportional to 20,174,430.90, 30,261,646.35 and 17,780,978.10 is: 26,671,467.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174,430.90 : 30,261,646.35 = 17,780,978.10 : x
  2. Step 2: Convert to fraction form
    20,174,430.90/30,261,646.35 = 17,780,978.10/x
  3. Step 3: Cross multiply
    20,174,430.90x = 30,261,646.35 × 17,780,978.10
  4. Step 4: Simplify right side
    20,174,430.90x = 538,081,671,019,295
  5. Step 5: Solve for x
    x = 538,081,671,019,295/20,174,430.90
  6. Step 6: Final answer
    x = 26,671,467.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.