Home / 1,910,190,818.73-2,865,870,988.17-978,173,569.74

Finding the Fourth Proportional to 1,910,190,818.73, 2,865,870,988.17 and 978,173,569.74

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Solution

The fourth proportional to 1,910,190,818.73, 2,865,870,988.17 and 978,173,569.74 is: 1,467,559,799.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910,190,818.73 : 2,865,870,988.17 = 978,173,569.74 : x
  2. Step 2: Convert to fraction form
    1,910,190,818.73/2,865,870,988.17 = 978,173,569.74/x
  3. Step 3: Cross multiply
    1,910,190,818.73x = 2,865,870,988.17 × 978,173,569.74
  4. Step 4: Simplify right side
    1,910,190,818.73x = 2,803,319,254,912,550,400
  5. Step 5: Solve for x
    x = 2,803,319,254,912,550,400/1,910,190,818.73
  6. Step 6: Final answer
    x = 1,467,559,799.48

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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.