Home / 256,155,655.20-384,233,482.80-64,679,431.20

Finding the Fourth Proportional to 256,155,655.20, 384,233,482.80 and 64,679,431.20

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Solution

The fourth proportional to 256,155,655.20, 384,233,482.80 and 64,679,431.20 is: 97,019,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,155,655.20 : 384,233,482.80 = 64,679,431.20 : x
  2. Step 2: Convert to fraction form
    256,155,655.20/384,233,482.80 = 64,679,431.20/x
  3. Step 3: Cross multiply
    256,155,655.20x = 384,233,482.80 × 64,679,431.20
  4. Step 4: Simplify right side
    256,155,655.20x = 24,852,003,115,498,984
  5. Step 5: Solve for x
    x = 24,852,003,115,498,984/256,155,655.20
  6. Step 6: Final answer
    x = 97,019,146.80

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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.