Home / 18,989,430.71-28,484,146.43-4,612,401.63

Finding the Fourth Proportional to 18,989,430.71, 28,484,146.43 and 4,612,401.63

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Solution

The fourth proportional to 18,989,430.71, 28,484,146.43 and 4,612,401.63 is: 6,918,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989,430.71 : 28,484,146.43 = 4,612,401.63 : x
  2. Step 2: Convert to fraction form
    18,989,430.71/28,484,146.43 = 4,612,401.63/x
  3. Step 3: Cross multiply
    18,989,430.71x = 28,484,146.43 × 4,612,401.63
  4. Step 4: Simplify right side
    18,989,430.71x = 131,380,323,399,828.67
  5. Step 5: Solve for x
    x = 131,380,323,399,828.67/18,989,430.71
  6. Step 6: Final answer
    x = 6,918,602.53

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Double scale
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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.