Home / 391,060,335.60-586,590,503.40-209,661,807.60

Finding the Fourth Proportional to 391,060,335.60, 586,590,503.40 and 209,661,807.60

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Solution

The fourth proportional to 391,060,335.60, 586,590,503.40 and 209,661,807.60 is: 314,492,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,060,335.60 : 586,590,503.40 = 209,661,807.60 : x
  2. Step 2: Convert to fraction form
    391,060,335.60/586,590,503.40 = 209,661,807.60/x
  3. Step 3: Cross multiply
    391,060,335.60x = 586,590,503.40 × 209,661,807.60
  4. Step 4: Simplify right side
    391,060,335.60x = 122,985,625,263,837,936
  5. Step 5: Solve for x
    x = 122,985,625,263,837,936/391,060,335.60
  6. Step 6: Final answer
    x = 314,492,711.40

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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.