Home / 1,238,773,721.40-1,858,160,582.10-870,724,256.85

Finding the Fourth Proportional to 1,238,773,721.40, 1,858,160,582.10 and 870,724,256.85

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Solution

The fourth proportional to 1,238,773,721.40, 1,858,160,582.10 and 870,724,256.85 is: 1,306,086,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,773,721.40 : 1,858,160,582.10 = 870,724,256.85 : x
  2. Step 2: Convert to fraction form
    1,238,773,721.40/1,858,160,582.10 = 870,724,256.85/x
  3. Step 3: Cross multiply
    1,238,773,721.40x = 1,858,160,582.10 × 870,724,256.85
  4. Step 4: Simplify right side
    1,238,773,721.40x = 1,617,945,491,956,985,856
  5. Step 5: Solve for x
    x = 1,617,945,491,956,985,856/1,238,773,721.40
  6. Step 6: Final answer
    x = 1,306,086,385.28

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1.5x scale

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.