Home / 917,973,899.19-1,266,767,008.34-500,277,194.55

Finding the Fourth Proportional to 917,973,899.19, 1,266,767,008.34 and 500,277,194.55

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Solution

The fourth proportional to 917,973,899.19, 1,266,767,008.34 and 500,277,194.55 is: 690,362,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,973,899.19 : 1,266,767,008.34 = 500,277,194.55 : x
  2. Step 2: Convert to fraction form
    917,973,899.19/1,266,767,008.34 = 500,277,194.55/x
  3. Step 3: Cross multiply
    917,973,899.19x = 1,266,767,008.34 × 500,277,194.55
  4. Step 4: Simplify right side
    917,973,899.19x = 633,734,645,078,330,240
  5. Step 5: Solve for x
    x = 633,734,645,078,330,240/917,973,899.19
  6. Step 6: Final answer
    x = 690,362,379.19

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Double scale
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1.5x scale

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.