Home / 191,497,409.60-287,426,517.60-100,686,171.20

Finding the Fourth Proportional to 191,497,409.60, 287,426,517.60 and 100,686,171.20

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Solution

The fourth proportional to 191,497,409.60, 287,426,517.60 and 100,686,171.20 is: 151,124,109.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,497,409.60 : 287,426,517.60 = 100,686,171.20 : x
  2. Step 2: Convert to fraction form
    191,497,409.60/287,426,517.60 = 100,686,171.20/x
  3. Step 3: Cross multiply
    191,497,409.60x = 287,426,517.60 × 100,686,171.20
  4. Step 4: Simplify right side
    191,497,409.60x = 28,939,875,558,493,416
  5. Step 5: Solve for x
    x = 28,939,875,558,493,416/191,497,409.60
  6. Step 6: Final answer
    x = 151,124,109.82

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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.