Home / 20,023,498.96-30,185,328.10-18,688,740.74

Finding the Fourth Proportional to 20,023,498.96, 30,185,328.10 and 18,688,740.74

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Solution

The fourth proportional to 20,023,498.96, 30,185,328.10 and 18,688,740.74 is: 28,173,186.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023,498.96 : 30,185,328.10 = 18,688,740.74 : x
  2. Step 2: Convert to fraction form
    20,023,498.96/30,185,328.10 = 18,688,740.74/x
  3. Step 3: Cross multiply
    20,023,498.96x = 30,185,328.10 × 18,688,740.74
  4. Step 4: Simplify right side
    20,023,498.96x = 564,125,771,012,736.75
  5. Step 5: Solve for x
    x = 564,125,771,012,736.75/20,023,498.96
  6. Step 6: Final answer
    x = 28,173,186.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.