Home / 79,620,717,817.58-109,876,586,386.28-42,998,829,645.58

Finding the Fourth Proportional to 79,620,717,817.58, 109,876,586,386.28 and 42,998,829,645.58

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Solution

The fourth proportional to 79,620,717,817.58, 109,876,586,386.28 and 42,998,829,645.58 is: 59,338,382,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,620,717,817.58 : 109,876,586,386.28 = 42,998,829,645.58 : x
  2. Step 2: Convert to fraction form
    79,620,717,817.58/109,876,586,386.28 = 42,998,829,645.58/x
  3. Step 3: Cross multiply
    79,620,717,817.58x = 109,876,586,386.28 × 42,998,829,645.58
  4. Step 4: Simplify right side
    79,620,717,817.58x = 4,724,564,620,061,178,855,424
  5. Step 5: Solve for x
    x = 4,724,564,620,061,178,855,424/79,620,717,817.58
  6. Step 6: Final answer
    x = 59,338,382,641.64

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.