Home / 1,116,801,269.63-1,541,136,038.08-640,149,926.30

Finding the Fourth Proportional to 1,116,801,269.63, 1,541,136,038.08 and 640,149,926.30

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Solution

The fourth proportional to 1,116,801,269.63, 1,541,136,038.08 and 640,149,926.30 is: 883,378,402.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,801,269.63 : 1,541,136,038.08 = 640,149,926.30 : x
  2. Step 2: Convert to fraction form
    1,116,801,269.63/1,541,136,038.08 = 640,149,926.30/x
  3. Step 3: Cross multiply
    1,116,801,269.63x = 1,541,136,038.08 × 640,149,926.30
  4. Step 4: Simplify right side
    1,116,801,269.63x = 986,558,121,195,185,920
  5. Step 5: Solve for x
    x = 986,558,121,195,185,920/1,116,801,269.63
  6. Step 6: Final answer
    x = 883,378,402.25

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Double scale
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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.