Home / 420,768,625.80-631,152,938.70-237,102,616.20

Finding the Fourth Proportional to 420,768,625.80, 631,152,938.70 and 237,102,616.20

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Solution

The fourth proportional to 420,768,625.80, 631,152,938.70 and 237,102,616.20 is: 355,653,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,768,625.80 : 631,152,938.70 = 237,102,616.20 : x
  2. Step 2: Convert to fraction form
    420,768,625.80/631,152,938.70 = 237,102,616.20/x
  3. Step 3: Cross multiply
    420,768,625.80x = 631,152,938.70 × 237,102,616.20
  4. Step 4: Simplify right side
    420,768,625.80x = 149,648,012,988,088,224
  5. Step 5: Solve for x
    x = 149,648,012,988,088,224/420,768,625.80
  6. Step 6: Final answer
    x = 355,653,924.30

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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.