Home / 1,218,948,293.16-1,682,157,253.91-662,031,340.22

Finding the Fourth Proportional to 1,218,948,293.16, 1,682,157,253.91 and 662,031,340.22

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Solution

The fourth proportional to 1,218,948,293.16, 1,682,157,253.91 and 662,031,340.22 is: 913,607,925.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,948,293.16 : 1,682,157,253.91 = 662,031,340.22 : x
  2. Step 2: Convert to fraction form
    1,218,948,293.16/1,682,157,253.91 = 662,031,340.22/x
  3. Step 3: Cross multiply
    1,218,948,293.16x = 1,682,157,253.91 × 662,031,340.22
  4. Step 4: Simplify right side
    1,218,948,293.16x = 1,113,640,821,267,727,360
  5. Step 5: Solve for x
    x = 1,113,640,821,267,727,360/1,218,948,293.16
  6. Step 6: Final answer
    x = 913,607,925.39

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Double scale
Find fourth proportional to 1,218,948,294.16, 1,682,157,255.29 and 662,031,341.22
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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.