Home / 260,220,110.69-390,291,771.33-75,938,106.93

Finding the Fourth Proportional to 260,220,110.69, 390,291,771.33 and 75,938,106.93

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Solution

The fourth proportional to 260,220,110.69, 390,291,771.33 and 75,938,106.93 is: 113,895,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,220,110.69 : 390,291,771.33 = 75,938,106.93 : x
  2. Step 2: Convert to fraction form
    260,220,110.69/390,291,771.33 = 75,938,106.93/x
  3. Step 3: Cross multiply
    260,220,110.69x = 390,291,771.33 × 75,938,106.93
  4. Step 4: Simplify right side
    260,220,110.69x = 29,638,018,263,693,052
  5. Step 5: Solve for x
    x = 29,638,018,263,693,052/260,220,110.69
  6. Step 6: Final answer
    x = 113,895,955.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.