Home / 426,909,462,380.79-640,341,640,323.21-140,029,730,029.61

Finding the Fourth Proportional to 426,909,462,380.79, 640,341,640,323.21 and 140,029,730,029.61

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Solution

The fourth proportional to 426,909,462,380.79, 640,341,640,323.21 and 140,029,730,029.61 is: 210,037,197,398.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,909,462,380.79 : 640,341,640,323.21 = 140,029,730,029.61 : x
  2. Step 2: Convert to fraction form
    426,909,462,380.79/640,341,640,323.21 = 140,029,730,029.61/x
  3. Step 3: Cross multiply
    426,909,462,380.79x = 640,341,640,323.21 × 140,029,730,029.61
  4. Step 4: Simplify right side
    426,909,462,380.79x = 89,666,867,021,176,704,598,016
  5. Step 5: Solve for x
    x = 89,666,867,021,176,704,598,016/426,909,462,380.79
  6. Step 6: Final answer
    x = 210,037,197,398.07

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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.