Home / 1,555,895,225.49-2,147,141,880.20-841,430,778.76

Finding the Fourth Proportional to 1,555,895,225.49, 2,147,141,880.20 and 841,430,778.76

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Solution

The fourth proportional to 1,555,895,225.49, 2,147,141,880.20 and 841,430,778.76 is: 1,161,177,973.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,895,225.49 : 2,147,141,880.20 = 841,430,778.76 : x
  2. Step 2: Convert to fraction form
    1,555,895,225.49/2,147,141,880.20 = 841,430,778.76/x
  3. Step 3: Cross multiply
    1,555,895,225.49x = 2,147,141,880.20 × 841,430,778.76
  4. Step 4: Simplify right side
    1,555,895,225.49x = 1,806,671,264,349,953,792
  5. Step 5: Solve for x
    x = 1,806,671,264,349,953,792/1,555,895,225.49
  6. Step 6: Final answer
    x = 1,161,177,973.14

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Double scale
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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.