Home / 785,496,820.29-1,178,532,532.86-365,518,491.48

Finding the Fourth Proportional to 785,496,820.29, 1,178,532,532.86 and 365,518,491.48

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Solution

The fourth proportional to 785,496,820.29, 1,178,532,532.86 and 365,518,491.48 is: 548,411,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,496,820.29 : 1,178,532,532.86 = 365,518,491.48 : x
  2. Step 2: Convert to fraction form
    785,496,820.29/1,178,532,532.86 = 365,518,491.48/x
  3. Step 3: Cross multiply
    785,496,820.29x = 1,178,532,532.86 × 365,518,491.48
  4. Step 4: Simplify right side
    785,496,820.29x = 430,775,433,571,090,688
  5. Step 5: Solve for x
    x = 430,775,433,571,090,688/785,496,820.29
  6. Step 6: Final answer
    x = 548,411,428.85

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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.