Home / 803,416,331.10-1,205,124,496.65-221,240,430.30

Finding the Fourth Proportional to 803,416,331.10, 1,205,124,496.65 and 221,240,430.30

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Solution

The fourth proportional to 803,416,331.10, 1,205,124,496.65 and 221,240,430.30 is: 331,860,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,416,331.10 : 1,205,124,496.65 = 221,240,430.30 : x
  2. Step 2: Convert to fraction form
    803,416,331.10/1,205,124,496.65 = 221,240,430.30/x
  3. Step 3: Cross multiply
    803,416,331.10x = 1,205,124,496.65 × 221,240,430.30
  4. Step 4: Simplify right side
    803,416,331.10x = 266,622,262,203,916,928
  5. Step 5: Solve for x
    x = 266,622,262,203,916,928/803,416,331.10
  6. Step 6: Final answer
    x = 331,860,645.45

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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.