Home / 258,064,397.80-387,096,596.70-256,272,807.40

Finding the Fourth Proportional to 258,064,397.80, 387,096,596.70 and 256,272,807.40

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Solution

The fourth proportional to 258,064,397.80, 387,096,596.70 and 256,272,807.40 is: 384,409,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,064,397.80 : 387,096,596.70 = 256,272,807.40 : x
  2. Step 2: Convert to fraction form
    258,064,397.80/387,096,596.70 = 256,272,807.40/x
  3. Step 3: Cross multiply
    258,064,397.80x = 387,096,596.70 × 256,272,807.40
  4. Step 4: Simplify right side
    258,064,397.80x = 99,202,331,571,294,576
  5. Step 5: Solve for x
    x = 99,202,331,571,294,576/258,064,397.80
  6. Step 6: Final answer
    x = 384,409,211.10

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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.