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Finding the Fourth Proportional to 28,010,772,947.80, 42,016,159,421.70 and 28,010,772,947.80

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Solution

The fourth proportional to 28,010,772,947.80, 42,016,159,421.70 and 28,010,772,947.80 is: 42,016,159,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010,772,947.80 : 42,016,159,421.70 = 28,010,772,947.80 : x
  2. Step 2: Convert to fraction form
    28,010,772,947.80/42,016,159,421.70 = 28,010,772,947.80/x
  3. Step 3: Cross multiply
    28,010,772,947.80x = 42,016,159,421.70 × 28,010,772,947.80
  4. Step 4: Simplify right side
    28,010,772,947.80x = 1,176,905,101,699,806,396,416
  5. Step 5: Solve for x
    x = 1,176,905,101,699,806,396,416/28,010,772,947.80
  6. Step 6: Final answer
    x = 42,016,159,421.70

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Double scale
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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.