Home / 973,986,849.29-1,345,218,883.80-640,946,164.30

Finding the Fourth Proportional to 973,986,849.29, 1,345,218,883.80 and 640,946,164.30

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Solution

The fourth proportional to 973,986,849.29, 1,345,218,883.80 and 640,946,164.30 is: 885,240,785.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    973,986,849.29 : 1,345,218,883.80 = 640,946,164.30 : x
  2. Step 2: Convert to fraction form
    973,986,849.29/1,345,218,883.80 = 640,946,164.30/x
  3. Step 3: Cross multiply
    973,986,849.29x = 1,345,218,883.80 × 640,946,164.30
  4. Step 4: Simplify right side
    973,986,849.29x = 862,212,883,715,537,280
  5. Step 5: Solve for x
    x = 862,212,883,715,537,280/973,986,849.29
  6. Step 6: Final answer
    x = 885,240,785.69

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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.