Home / 1,281,983,678.98-1,922,972,528.43-842,102,988.10

Finding the Fourth Proportional to 1,281,983,678.98, 1,922,972,528.43 and 842,102,988.10

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Solution

The fourth proportional to 1,281,983,678.98, 1,922,972,528.43 and 842,102,988.10 is: 1,263,152,518.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,983,678.98 : 1,922,972,528.43 = 842,102,988.10 : x
  2. Step 2: Convert to fraction form
    1,281,983,678.98/1,922,972,528.43 = 842,102,988.10/x
  3. Step 3: Cross multiply
    1,281,983,678.98x = 1,922,972,528.43 × 842,102,988.10
  4. Step 4: Simplify right side
    1,281,983,678.98x = 1,619,340,912,225,115,392
  5. Step 5: Solve for x
    x = 1,619,340,912,225,115,392/1,281,983,678.98
  6. Step 6: Final answer
    x = 1,263,152,518.07

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Double scale
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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.