Home / 812,021,723.73-1,120,559,972.67-440,735,783.49

Finding the Fourth Proportional to 812,021,723.73, 1,120,559,972.67 and 440,735,783.49

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Solution

The fourth proportional to 812,021,723.73, 1,120,559,972.67 and 440,735,783.49 is: 608,199,095.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,021,723.73 : 1,120,559,972.67 = 440,735,783.49 : x
  2. Step 2: Convert to fraction form
    812,021,723.73/1,120,559,972.67 = 440,735,783.49/x
  3. Step 3: Cross multiply
    812,021,723.73x = 1,120,559,972.67 × 440,735,783.49
  4. Step 4: Simplify right side
    812,021,723.73x = 493,870,877,502,245,504
  5. Step 5: Solve for x
    x = 493,870,877,502,245,504/812,021,723.73
  6. Step 6: Final answer
    x = 608,199,095.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.