Home / 209,516,483.22-289,132,825.95-121,461,525.03

Finding the Fourth Proportional to 209,516,483.22, 289,132,825.95 and 121,461,525.03

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Solution

The fourth proportional to 209,516,483.22, 289,132,825.95 and 121,461,525.03 is: 167,616,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,516,483.22 : 289,132,825.95 = 121,461,525.03 : x
  2. Step 2: Convert to fraction form
    209,516,483.22/289,132,825.95 = 121,461,525.03/x
  3. Step 3: Cross multiply
    209,516,483.22x = 289,132,825.95 × 121,461,525.03
  4. Step 4: Simplify right side
    209,516,483.22x = 35,118,513,976,120,556
  5. Step 5: Solve for x
    x = 35,118,513,976,120,556/209,516,483.22
  6. Step 6: Final answer
    x = 167,616,950.40

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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.