Home / 785,490,820.64-1,178,242,137.17-348,674,071.67

Finding the Fourth Proportional to 785,490,820.64, 1,178,242,137.17 and 348,674,071.67

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Solution

The fourth proportional to 785,490,820.64, 1,178,242,137.17 and 348,674,071.67 is: 523,013,729.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,490,820.64 : 1,178,242,137.17 = 348,674,071.67 : x
  2. Step 2: Convert to fraction form
    785,490,820.64/1,178,242,137.17 = 348,674,071.67/x
  3. Step 3: Cross multiply
    785,490,820.64x = 1,178,242,137.17 × 348,674,071.67
  4. Step 4: Simplify right side
    785,490,820.64x = 410,822,483,372,592,000
  5. Step 5: Solve for x
    x = 410,822,483,372,592,000/785,490,820.64
  6. Step 6: Final answer
    x = 523,013,729.23

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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.