Home / 785,490,821.13-1,178,242,137.92-348,674,072.16

Finding the Fourth Proportional to 785,490,821.13, 1,178,242,137.92 and 348,674,072.16

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Solution

The fourth proportional to 785,490,821.13, 1,178,242,137.92 and 348,674,072.16 is: 523,013,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,490,821.13 : 1,178,242,137.92 = 348,674,072.16 : x
  2. Step 2: Convert to fraction form
    785,490,821.13/1,178,242,137.92 = 348,674,072.16/x
  3. Step 3: Cross multiply
    785,490,821.13x = 1,178,242,137.92 × 348,674,072.16
  4. Step 4: Simplify right side
    785,490,821.13x = 410,822,484,219,070,784
  5. Step 5: Solve for x
    x = 410,822,484,219,070,784/785,490,821.13
  6. Step 6: Final answer
    x = 523,013,729.97

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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.