Home / 191,520,051.60-287,280,077.40-131,053,875.60

Finding the Fourth Proportional to 191,520,051.60, 287,280,077.40 and 131,053,875.60

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Solution

The fourth proportional to 191,520,051.60, 287,280,077.40 and 131,053,875.60 is: 196,580,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,520,051.60 : 287,280,077.40 = 131,053,875.60 : x
  2. Step 2: Convert to fraction form
    191,520,051.60/287,280,077.40 = 131,053,875.60/x
  3. Step 3: Cross multiply
    191,520,051.60x = 287,280,077.40 × 131,053,875.60
  4. Step 4: Simplify right side
    191,520,051.60x = 37,649,167,525,937,968
  5. Step 5: Solve for x
    x = 37,649,167,525,937,968/191,520,051.60
  6. Step 6: Final answer
    x = 196,580,813.40

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1.5x scale

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.