Home / 786,672,001.80-1,180,008,002.70-378,525,313.80

Finding the Fourth Proportional to 786,672,001.80, 1,180,008,002.70 and 378,525,313.80

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Solution

The fourth proportional to 786,672,001.80, 1,180,008,002.70 and 378,525,313.80 is: 567,787,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,672,001.80 : 1,180,008,002.70 = 378,525,313.80 : x
  2. Step 2: Convert to fraction form
    786,672,001.80/1,180,008,002.70 = 378,525,313.80/x
  3. Step 3: Cross multiply
    786,672,001.80x = 1,180,008,002.70 × 378,525,313.80
  4. Step 4: Simplify right side
    786,672,001.80x = 446,662,899,508,528,768
  5. Step 5: Solve for x
    x = 446,662,899,508,528,768/786,672,001.80
  6. Step 6: Final answer
    x = 567,787,970.70

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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.