Home / 114,606,425.40-171,909,638.10-78,326,719.80

Finding the Fourth Proportional to 114,606,425.40, 171,909,638.10 and 78,326,719.80

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Solution

The fourth proportional to 114,606,425.40, 171,909,638.10 and 78,326,719.80 is: 117,490,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,606,425.40 : 171,909,638.10 = 78,326,719.80 : x
  2. Step 2: Convert to fraction form
    114,606,425.40/171,909,638.10 = 78,326,719.80/x
  3. Step 3: Cross multiply
    114,606,425.40x = 171,909,638.10 × 78,326,719.80
  4. Step 4: Simplify right side
    114,606,425.40x = 13,465,118,054,378,104
  5. Step 5: Solve for x
    x = 13,465,118,054,378,104/114,606,425.40
  6. Step 6: Final answer
    x = 117,490,079.70

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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.