Home / 478,329,239.28-660,094,343.64-258,312,658.80

Finding the Fourth Proportional to 478,329,239.28, 660,094,343.64 and 258,312,658.80

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Solution

The fourth proportional to 478,329,239.28, 660,094,343.64 and 258,312,658.80 is: 356,471,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,329,239.28 : 660,094,343.64 = 258,312,658.80 : x
  2. Step 2: Convert to fraction form
    478,329,239.28/660,094,343.64 = 258,312,658.80/x
  3. Step 3: Cross multiply
    478,329,239.28x = 660,094,343.64 × 258,312,658.80
  4. Step 4: Simplify right side
    478,329,239.28x = 170,510,724,964,489,280
  5. Step 5: Solve for x
    x = 170,510,724,964,489,280/478,329,239.28
  6. Step 6: Final answer
    x = 356,471,465.60

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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.