Home / 279,487,045.92-385,676,384.40-154,038,861.72

Finding the Fourth Proportional to 279,487,045.92, 385,676,384.40 and 154,038,861.72

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Solution

The fourth proportional to 279,487,045.92, 385,676,384.40 and 154,038,861.72 is: 212,564,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,487,045.92 : 385,676,384.40 = 154,038,861.72 : x
  2. Step 2: Convert to fraction form
    279,487,045.92/385,676,384.40 = 154,038,861.72/x
  3. Step 3: Cross multiply
    279,487,045.92x = 385,676,384.40 × 154,038,861.72
  4. Step 4: Simplify right side
    279,487,045.92x = 59,409,151,245,261,160
  5. Step 5: Solve for x
    x = 59,409,151,245,261,160/279,487,045.92
  6. Step 6: Final answer
    x = 212,564,954.66

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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.