Home / 418,872,459.74-578,048,010.28-230,705,019.58

Finding the Fourth Proportional to 418,872,459.74, 578,048,010.28 and 230,705,019.58

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Solution

The fourth proportional to 418,872,459.74, 578,048,010.28 and 230,705,019.58 is: 318,375,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,872,459.74 : 578,048,010.28 = 230,705,019.58 : x
  2. Step 2: Convert to fraction form
    418,872,459.74/578,048,010.28 = 230,705,019.58/x
  3. Step 3: Cross multiply
    418,872,459.74x = 578,048,010.28 × 230,705,019.58
  4. Step 4: Simplify right side
    418,872,459.74x = 133,358,577,529,827,440
  5. Step 5: Solve for x
    x = 133,358,577,529,827,440/418,872,459.74
  6. Step 6: Final answer
    x = 318,375,138.85

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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.