Home / 12,191,736,005.20-18,287,604,007.80-3,911,460,072.40

Finding the Fourth Proportional to 12,191,736,005.20, 18,287,604,007.80 and 3,911,460,072.40

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Solution

The fourth proportional to 12,191,736,005.20, 18,287,604,007.80 and 3,911,460,072.40 is: 5,867,190,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191,736,005.20 : 18,287,604,007.80 = 3,911,460,072.40 : x
  2. Step 2: Convert to fraction form
    12,191,736,005.20/18,287,604,007.80 = 3,911,460,072.40/x
  3. Step 3: Cross multiply
    12,191,736,005.20x = 18,287,604,007.80 × 3,911,460,072.40
  4. Step 4: Simplify right side
    12,191,736,005.20x = 71,531,232,896,371,916,800
  5. Step 5: Solve for x
    x = 71,531,232,896,371,916,800/12,191,736,005.20
  6. Step 6: Final answer
    x = 5,867,190,108.60

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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.