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Finding the Fourth Proportional to 53,009,881.80, 79,514,822.70 and 28,760,425.80

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Solution

The fourth proportional to 53,009,881.80, 79,514,822.70 and 28,760,425.80 is: 43,140,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,009,881.80 : 79,514,822.70 = 28,760,425.80 : x
  2. Step 2: Convert to fraction form
    53,009,881.80/79,514,822.70 = 28,760,425.80/x
  3. Step 3: Cross multiply
    53,009,881.80x = 79,514,822.70 × 28,760,425.80
  4. Step 4: Simplify right side
    53,009,881.80x = 2,286,880,158,263,506
  5. Step 5: Solve for x
    x = 2,286,880,158,263,506/53,009,881.80
  6. Step 6: Final answer
    x = 43,140,638.70

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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.