Home / 377,663,471.79-521,191,675.56-210,399,638.32

Finding the Fourth Proportional to 377,663,471.79, 521,191,675.56 and 210,399,638.32

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Solution

The fourth proportional to 377,663,471.79, 521,191,675.56 and 210,399,638.32 is: 290,360,461.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,663,471.79 : 521,191,675.56 = 210,399,638.32 : x
  2. Step 2: Convert to fraction form
    377,663,471.79/521,191,675.56 = 210,399,638.32/x
  3. Step 3: Cross multiply
    377,663,471.79x = 521,191,675.56 × 210,399,638.32
  4. Step 4: Simplify right side
    377,663,471.79x = 109,658,540,033,218,784
  5. Step 5: Solve for x
    x = 109,658,540,033,218,784/377,663,471.79
  6. Step 6: Final answer
    x = 290,360,461.69

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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.