Home / 803,416,329.60-1,205,124,494.40-221,240,428.80

Finding the Fourth Proportional to 803,416,329.60, 1,205,124,494.40 and 221,240,428.80

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Solution

The fourth proportional to 803,416,329.60, 1,205,124,494.40 and 221,240,428.80 is: 331,860,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,416,329.60 : 1,205,124,494.40 = 221,240,428.80 : x
  2. Step 2: Convert to fraction form
    803,416,329.60/1,205,124,494.40 = 221,240,428.80/x
  3. Step 3: Cross multiply
    803,416,329.60x = 1,205,124,494.40 × 221,240,428.80
  4. Step 4: Simplify right side
    803,416,329.60x = 266,622,259,898,439,232
  5. Step 5: Solve for x
    x = 266,622,259,898,439,232/803,416,329.60
  6. Step 6: Final answer
    x = 331,860,643.20

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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.