Home / 810,225,430.60-1,118,112,228.79-438,947,461.97

Finding the Fourth Proportional to 810,225,430.60, 1,118,112,228.79 and 438,947,461.97

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Solution

The fourth proportional to 810,225,430.60, 1,118,112,228.79 and 438,947,461.97 is: 605,748,112.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,225,430.60 : 1,118,112,228.79 = 438,947,461.97 : x
  2. Step 2: Convert to fraction form
    810,225,430.60/1,118,112,228.79 = 438,947,461.97/x
  3. Step 3: Cross multiply
    810,225,430.60x = 1,118,112,228.79 × 438,947,461.97
  4. Step 4: Simplify right side
    810,225,430.60x = 490,792,525,024,990,464
  5. Step 5: Solve for x
    x = 490,792,525,024,990,464/810,225,430.60
  6. Step 6: Final answer
    x = 605,748,112.18

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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.