Home / 420,061,370.96-630,086,988.00-109,141,474.93

Finding the Fourth Proportional to 420,061,370.96, 630,086,988.00 and 109,141,474.93

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Solution

The fourth proportional to 420,061,370.96, 630,086,988.00 and 109,141,474.93 is: 163,710,895.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,061,370.96 : 630,086,988.00 = 109,141,474.93 : x
  2. Step 2: Convert to fraction form
    420,061,370.96/630,086,988.00 = 109,141,474.93/x
  3. Step 3: Cross multiply
    420,061,370.96x = 630,086,988.00 × 109,141,474.93
  4. Step 4: Simplify right side
    420,061,370.96x = 68,768,623,203,355,264
  5. Step 5: Solve for x
    x = 68,768,623,203,355,264/420,061,370.96
  6. Step 6: Final answer
    x = 163,710,895.50

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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.