Home / 353,804,280.72-488,286,228.60-212,721,457.50

Finding the Fourth Proportional to 353,804,280.72, 488,286,228.60 and 212,721,457.50

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Solution

The fourth proportional to 353,804,280.72, 488,286,228.60 and 212,721,457.50 is: 293,577,449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,804,280.72 : 488,286,228.60 = 212,721,457.50 : x
  2. Step 2: Convert to fraction form
    353,804,280.72/488,286,228.60 = 212,721,457.50/x
  3. Step 3: Cross multiply
    353,804,280.72x = 488,286,228.60 × 212,721,457.50
  4. Step 4: Simplify right side
    353,804,280.72x = 103,868,958,224,970,192
  5. Step 5: Solve for x
    x = 103,868,958,224,970,192/353,804,280.72
  6. Step 6: Final answer
    x = 293,577,449.13

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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.