Home / 191,692,661.60-287,538,992.40-157,680,437.60

Finding the Fourth Proportional to 191,692,661.60, 287,538,992.40 and 157,680,437.60

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Solution

The fourth proportional to 191,692,661.60, 287,538,992.40 and 157,680,437.60 is: 236,520,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,692,661.60 : 287,538,992.40 = 157,680,437.60 : x
  2. Step 2: Convert to fraction form
    191,692,661.60/287,538,992.40 = 157,680,437.60/x
  3. Step 3: Cross multiply
    191,692,661.60x = 287,538,992.40 × 157,680,437.60
  4. Step 4: Simplify right side
    191,692,661.60x = 45,339,274,148,695,072
  5. Step 5: Solve for x
    x = 45,339,274,148,695,072/191,692,661.60
  6. Step 6: Final answer
    x = 236,520,656.40

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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.