Home / 402,342,837.48-555,238,122.48-243,570,855.96

Finding the Fourth Proportional to 402,342,837.48, 555,238,122.48 and 243,570,855.96

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Solution

The fourth proportional to 402,342,837.48, 555,238,122.48 and 243,570,855.96 is: 336,130,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,342,837.48 : 555,238,122.48 = 243,570,855.96 : x
  2. Step 2: Convert to fraction form
    402,342,837.48/555,238,122.48 = 243,570,855.96/x
  3. Step 3: Cross multiply
    402,342,837.48x = 555,238,122.48 × 243,570,855.96
  4. Step 4: Simplify right side
    402,342,837.48x = 135,239,824,754,076,928
  5. Step 5: Solve for x
    x = 135,239,824,754,076,928/402,342,837.48
  6. Step 6: Final answer
    x = 336,130,812.22

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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.