Home / 841,488,856.57-1,161,232,342.91-470,213,938.81

Finding the Fourth Proportional to 841,488,856.57, 1,161,232,342.91 and 470,213,938.81

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Solution

The fourth proportional to 841,488,856.57, 1,161,232,342.91 and 470,213,938.81 is: 648,882,786.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,488,856.57 : 1,161,232,342.91 = 470,213,938.81 : x
  2. Step 2: Convert to fraction form
    841,488,856.57/1,161,232,342.91 = 470,213,938.81/x
  3. Step 3: Cross multiply
    841,488,856.57x = 1,161,232,342.91 × 470,213,938.81
  4. Step 4: Simplify right side
    841,488,856.57x = 546,027,633,827,469,568
  5. Step 5: Solve for x
    x = 546,027,633,827,469,568/841,488,856.57
  6. Step 6: Final answer
    x = 648,882,786.23

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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.