Home / 391,164,368.40-586,746,552.60-236,196,172.80

Finding the Fourth Proportional to 391,164,368.40, 586,746,552.60 and 236,196,172.80

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Solution

The fourth proportional to 391,164,368.40, 586,746,552.60 and 236,196,172.80 is: 354,294,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,164,368.40 : 586,746,552.60 = 236,196,172.80 : x
  2. Step 2: Convert to fraction form
    391,164,368.40/586,746,552.60 = 236,196,172.80/x
  3. Step 3: Cross multiply
    391,164,368.40x = 586,746,552.60 × 236,196,172.80
  4. Step 4: Simplify right side
    391,164,368.40x = 138,587,290,127,713,904
  5. Step 5: Solve for x
    x = 138,587,290,127,713,904/391,164,368.40
  6. Step 6: Final answer
    x = 354,294,259.20

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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.