Home / 1,317,880,056.20-1,818,669,486.64-723,174,490.56

Finding the Fourth Proportional to 1,317,880,056.20, 1,818,669,486.64 and 723,174,490.56

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Solution

The fourth proportional to 1,317,880,056.20, 1,818,669,486.64 and 723,174,490.56 is: 997,978,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,880,056.20 : 1,818,669,486.64 = 723,174,490.56 : x
  2. Step 2: Convert to fraction form
    1,317,880,056.20/1,818,669,486.64 = 723,174,490.56/x
  3. Step 3: Cross multiply
    1,317,880,056.20x = 1,818,669,486.64 × 723,174,490.56
  4. Step 4: Simplify right side
    1,317,880,056.20x = 1,315,215,379,497,898,752
  5. Step 5: Solve for x
    x = 1,315,215,379,497,898,752/1,317,880,056.20
  6. Step 6: Final answer
    x = 997,978,058.25

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1.5x scale

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.