Home / 420,401,563.56-630,533,877.66-147,708,674.28

Finding the Fourth Proportional to 420,401,563.56, 630,533,877.66 and 147,708,674.28

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Solution

The fourth proportional to 420,401,563.56, 630,533,877.66 and 147,708,674.28 is: 221,538,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,401,563.56 : 630,533,877.66 = 147,708,674.28 : x
  2. Step 2: Convert to fraction form
    420,401,563.56/630,533,877.66 = 147,708,674.28/x
  3. Step 3: Cross multiply
    420,401,563.56x = 630,533,877.66 × 147,708,674.28
  4. Step 4: Simplify right side
    420,401,563.56x = 93,135,323,157,786,304
  5. Step 5: Solve for x
    x = 93,135,323,157,786,304/420,401,563.56
  6. Step 6: Final answer
    x = 221,538,955.21

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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.