Home / 498,653,526.72-688,210,226.96-286,956,006.56

Finding the Fourth Proportional to 498,653,526.72, 688,210,226.96 and 286,956,006.56

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Solution

The fourth proportional to 498,653,526.72, 688,210,226.96 and 286,956,006.56 is: 396,038,627.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,653,526.72 : 688,210,226.96 = 286,956,006.56 : x
  2. Step 2: Convert to fraction form
    498,653,526.72/688,210,226.96 = 286,956,006.56/x
  3. Step 3: Cross multiply
    498,653,526.72x = 688,210,226.96 × 286,956,006.56
  4. Step 4: Simplify right side
    498,653,526.72x = 197,486,058,402,192,864
  5. Step 5: Solve for x
    x = 197,486,058,402,192,864/498,653,526.72
  6. Step 6: Final answer
    x = 396,038,627.66

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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.