Home / 255,876,320.40-383,579,068.80-139,121,057.76

Finding the Fourth Proportional to 255,876,320.40, 383,579,068.80 and 139,121,057.76

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Solution

The fourth proportional to 255,876,320.40, 383,579,068.80 and 139,121,057.76 is: 208,553,592.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,876,320.40 : 383,579,068.80 = 139,121,057.76 : x
  2. Step 2: Convert to fraction form
    255,876,320.40/383,579,068.80 = 139,121,057.76/x
  3. Step 3: Cross multiply
    255,876,320.40x = 383,579,068.80 × 139,121,057.76
  4. Step 4: Simplify right side
    255,876,320.40x = 53,363,925,786,051,808
  5. Step 5: Solve for x
    x = 53,363,925,786,051,808/255,876,320.40
  6. Step 6: Final answer
    x = 208,553,592.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.