Home / 391,140,587,421.60-586,710,881,132.40-272,125,013,200.80

Finding the Fourth Proportional to 391,140,587,421.60, 586,710,881,132.40 and 272,125,013,200.80

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Solution

The fourth proportional to 391,140,587,421.60, 586,710,881,132.40 and 272,125,013,200.80 is: 408,187,519,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,140,587,421.60 : 586,710,881,132.40 = 272,125,013,200.80 : x
  2. Step 2: Convert to fraction form
    391,140,587,421.60/586,710,881,132.40 = 272,125,013,200.80/x
  3. Step 3: Cross multiply
    391,140,587,421.60x = 586,710,881,132.40 × 272,125,013,200.80
  4. Step 4: Simplify right side
    391,140,587,421.60x = 159,658,706,273,207,335,256,064
  5. Step 5: Solve for x
    x = 159,658,706,273,207,335,256,064/391,140,587,421.60
  6. Step 6: Final answer
    x = 408,187,519,801.20

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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.