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Finding the Fourth Proportional to 535,879,603.60, 803,819,405.40 and 263,781,811.60

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Solution

The fourth proportional to 535,879,603.60, 803,819,405.40 and 263,781,811.60 is: 395,672,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,879,603.60 : 803,819,405.40 = 263,781,811.60 : x
  2. Step 2: Convert to fraction form
    535,879,603.60/803,819,405.40 = 263,781,811.60/x
  3. Step 3: Cross multiply
    535,879,603.60x = 803,819,405.40 × 263,781,811.60
  4. Step 4: Simplify right side
    535,879,603.60x = 212,032,938,955,646,816
  5. Step 5: Solve for x
    x = 212,032,938,955,646,816/535,879,603.60
  6. Step 6: Final answer
    x = 395,672,717.40

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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.