Home / 425,937,431,301.60-638,945,423,377.79-139,096,991,072.81

Finding the Fourth Proportional to 425,937,431,301.60, 638,945,423,377.79 and 139,096,991,072.81

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Solution

The fourth proportional to 425,937,431,301.60, 638,945,423,377.79 and 139,096,991,072.81 is: 208,658,312,982.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,937,431,301.60 : 638,945,423,377.79 = 139,096,991,072.81 : x
  2. Step 2: Convert to fraction form
    425,937,431,301.60/638,945,423,377.79 = 139,096,991,072.81/x
  3. Step 3: Cross multiply
    425,937,431,301.60x = 638,945,423,377.79 × 139,096,991,072.81
  4. Step 4: Simplify right side
    425,937,431,301.60x = 88,875,385,851,593,258,696,704
  5. Step 5: Solve for x
    x = 88,875,385,851,593,258,696,704/425,937,431,301.60
  6. Step 6: Final answer
    x = 208,658,312,982.74

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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.