Home / 18,858,528,030.80-28,287,792,046.20-7,813,373,214.80

Finding the Fourth Proportional to 18,858,528,030.80, 28,287,792,046.20 and 7,813,373,214.80

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Solution

The fourth proportional to 18,858,528,030.80, 28,287,792,046.20 and 7,813,373,214.80 is: 11,720,059,822.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858,528,030.80 : 28,287,792,046.20 = 7,813,373,214.80 : x
  2. Step 2: Convert to fraction form
    18,858,528,030.80/28,287,792,046.20 = 7,813,373,214.80/x
  3. Step 3: Cross multiply
    18,858,528,030.80x = 28,287,792,046.20 × 7,813,373,214.80
  4. Step 4: Simplify right side
    18,858,528,030.80x = 221,023,076,679,611,580,416
  5. Step 5: Solve for x
    x = 221,023,076,679,611,580,416/18,858,528,030.80
  6. Step 6: Final answer
    x = 11,720,059,822.20

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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.