Home / 191,808,006.40-287,712,009.60-84,102,630.40

Finding the Fourth Proportional to 191,808,006.40, 287,712,009.60 and 84,102,630.40

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Solution

The fourth proportional to 191,808,006.40, 287,712,009.60 and 84,102,630.40 is: 126,153,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,808,006.40 : 287,712,009.60 = 84,102,630.40 : x
  2. Step 2: Convert to fraction form
    191,808,006.40/287,712,009.60 = 84,102,630.40/x
  3. Step 3: Cross multiply
    191,808,006.40x = 287,712,009.60 × 84,102,630.40
  4. Step 4: Simplify right side
    191,808,006.40x = 24,197,336,805,030,056
  5. Step 5: Solve for x
    x = 24,197,336,805,030,056/191,808,006.40
  6. Step 6: Final answer
    x = 126,153,945.60

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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.