Home / 999,563,898.16-1,379,380,887.84-553,518,424.72

Finding the Fourth Proportional to 999,563,898.16, 1,379,380,887.84 and 553,518,424.72

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Solution

The fourth proportional to 999,563,898.16, 1,379,380,887.84 and 553,518,424.72 is: 763,845,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,563,898.16 : 1,379,380,887.84 = 553,518,424.72 : x
  2. Step 2: Convert to fraction form
    999,563,898.16/1,379,380,887.84 = 553,518,424.72/x
  3. Step 3: Cross multiply
    999,563,898.16x = 1,379,380,887.84 × 553,518,424.72
  4. Step 4: Simplify right side
    999,563,898.16x = 763,512,736,126,071,808
  5. Step 5: Solve for x
    x = 763,512,736,126,071,808/999,563,898.16
  6. Step 6: Final answer
    x = 763,845,850.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.