Home / 900,570,562.84-1,242,800,069.02-518,881,649.48

Finding the Fourth Proportional to 900,570,562.84, 1,242,800,069.02 and 518,881,649.48

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Solution

The fourth proportional to 900,570,562.84, 1,242,800,069.02 and 518,881,649.48 is: 716,063,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,570,562.84 : 1,242,800,069.02 = 518,881,649.48 : x
  2. Step 2: Convert to fraction form
    900,570,562.84/1,242,800,069.02 = 518,881,649.48/x
  3. Step 3: Cross multiply
    900,570,562.84x = 1,242,800,069.02 × 518,881,649.48
  4. Step 4: Simplify right side
    900,570,562.84x = 644,866,149,786,955,520
  5. Step 5: Solve for x
    x = 644,866,149,786,955,520/900,570,562.84
  6. Step 6: Final answer
    x = 716,063,989.20

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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.