Home / 648,638,869.80-973,011,405.12-188,576,475.96

Finding the Fourth Proportional to 648,638,869.80, 973,011,405.12 and 188,576,475.96

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Solution

The fourth proportional to 648,638,869.80, 973,011,405.12 and 188,576,475.96 is: 282,880,151.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,638,869.80 : 973,011,405.12 = 188,576,475.96 : x
  2. Step 2: Convert to fraction form
    648,638,869.80/973,011,405.12 = 188,576,475.96/x
  3. Step 3: Cross multiply
    648,638,869.80x = 973,011,405.12 × 188,576,475.96
  4. Step 4: Simplify right side
    648,638,869.80x = 183,487,061,846,417,504
  5. Step 5: Solve for x
    x = 183,487,061,846,417,504/648,638,869.80
  6. Step 6: Final answer
    x = 282,880,151.64

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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.