Home / 973,986,848.29-1,345,218,882.42-640,946,163.30

Finding the Fourth Proportional to 973,986,848.29, 1,345,218,882.42 and 640,946,163.30

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Solution

The fourth proportional to 973,986,848.29, 1,345,218,882.42 and 640,946,163.30 is: 885,240,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    973,986,848.29 : 1,345,218,882.42 = 640,946,163.30 : x
  2. Step 2: Convert to fraction form
    973,986,848.29/1,345,218,882.42 = 640,946,163.30/x
  3. Step 3: Cross multiply
    973,986,848.29x = 1,345,218,882.42 × 640,946,163.30
  4. Step 4: Simplify right side
    973,986,848.29x = 862,212,881,483,163,392
  5. Step 5: Solve for x
    x = 862,212,881,483,163,392/973,986,848.29
  6. Step 6: Final answer
    x = 885,240,784.30

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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.