Home / 309,049,347,272.80-463,574,020,909.20-99,691,259,490.40

Finding the Fourth Proportional to 309,049,347,272.80, 463,574,020,909.20 and 99,691,259,490.40

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Solution

The fourth proportional to 309,049,347,272.80, 463,574,020,909.20 and 99,691,259,490.40 is: 149,536,889,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,049,347,272.80 : 463,574,020,909.20 = 99,691,259,490.40 : x
  2. Step 2: Convert to fraction form
    309,049,347,272.80/463,574,020,909.20 = 99,691,259,490.40/x
  3. Step 3: Cross multiply
    309,049,347,272.80x = 463,574,020,909.20 × 99,691,259,490.40
  4. Step 4: Simplify right side
    309,049,347,272.80x = 46,214,278,011,467,170,054,144
  5. Step 5: Solve for x
    x = 46,214,278,011,467,170,054,144/309,049,347,272.80
  6. Step 6: Final answer
    x = 149,536,889,235.60

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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.