Home / 1,555,895,225.24-2,147,141,879.85-841,430,778.51

Finding the Fourth Proportional to 1,555,895,225.24, 2,147,141,879.85 and 841,430,778.51

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Solution

The fourth proportional to 1,555,895,225.24, 2,147,141,879.85 and 841,430,778.51 is: 1,161,177,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,895,225.24 : 2,147,141,879.85 = 841,430,778.51 : x
  2. Step 2: Convert to fraction form
    1,555,895,225.24/2,147,141,879.85 = 841,430,778.51/x
  3. Step 3: Cross multiply
    1,555,895,225.24x = 2,147,141,879.85 × 841,430,778.51
  4. Step 4: Simplify right side
    1,555,895,225.24x = 1,806,671,263,533,610,240
  5. Step 5: Solve for x
    x = 1,806,671,263,533,610,240/1,555,895,225.24
  6. Step 6: Final answer
    x = 1,161,177,972.80

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1.5x scale

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.