Home / 19,415,296,020.80-29,122,944,031.20-18,871,100,436.80

Finding the Fourth Proportional to 19,415,296,020.80, 29,122,944,031.20 and 18,871,100,436.80

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Solution

The fourth proportional to 19,415,296,020.80, 29,122,944,031.20 and 18,871,100,436.80 is: 28,306,650,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415,296,020.80 : 29,122,944,031.20 = 18,871,100,436.80 : x
  2. Step 2: Convert to fraction form
    19,415,296,020.80/29,122,944,031.20 = 18,871,100,436.80/x
  3. Step 3: Cross multiply
    19,415,296,020.80x = 29,122,944,031.20 × 18,871,100,436.80
  4. Step 4: Simplify right side
    19,415,296,020.80x = 549,582,001,828,080,254,976
  5. Step 5: Solve for x
    x = 549,582,001,828,080,254,976/19,415,296,020.80
  6. Step 6: Final answer
    x = 28,306,650,655.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.