Home / 498,654,054.36-688,210,950.29-286,956,536.76

Finding the Fourth Proportional to 498,654,054.36, 688,210,950.29 and 286,956,536.76

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Solution

The fourth proportional to 498,654,054.36, 688,210,950.29 and 286,956,536.76 is: 396,039,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,654,054.36 : 688,210,950.29 = 286,956,536.76 : x
  2. Step 2: Convert to fraction form
    498,654,054.36/688,210,950.29 = 286,956,536.76/x
  3. Step 3: Cross multiply
    498,654,054.36x = 688,210,950.29 × 286,956,536.76
  4. Step 4: Simplify right side
    498,654,054.36x = 197,486,630,854,092,128
  5. Step 5: Solve for x
    x = 197,486,630,854,092,128/498,654,054.36
  6. Step 6: Final answer
    x = 396,039,356.60

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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.