Home / 1,020,201,304.95-1,408,312,214.23-685,867,728.63

Finding the Fourth Proportional to 1,020,201,304.95, 1,408,312,214.23 and 685,867,728.63

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Solution

The fourth proportional to 1,020,201,304.95, 1,408,312,214.23 and 685,867,728.63 is: 946,789,515.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,201,304.95 : 1,408,312,214.23 = 685,867,728.63 : x
  2. Step 2: Convert to fraction form
    1,020,201,304.95/1,408,312,214.23 = 685,867,728.63/x
  3. Step 3: Cross multiply
    1,020,201,304.95x = 1,408,312,214.23 × 685,867,728.63
  4. Step 4: Simplify right side
    1,020,201,304.95x = 965,915,899,575,816,064
  5. Step 5: Solve for x
    x = 965,915,899,575,816,064/1,020,201,304.95
  6. Step 6: Final answer
    x = 946,789,515.84

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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.