Home / 289,655,539.20-434,987,193.60-153,606,643.20

Finding the Fourth Proportional to 289,655,539.20, 434,987,193.60 and 153,606,643.20

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Solution

The fourth proportional to 289,655,539.20, 434,987,193.60 and 153,606,643.20 is: 230,677,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,655,539.20 : 434,987,193.60 = 153,606,643.20 : x
  2. Step 2: Convert to fraction form
    289,655,539.20/434,987,193.60 = 153,606,643.20/x
  3. Step 3: Cross multiply
    289,655,539.20x = 434,987,193.60 × 153,606,643.20
  4. Step 4: Simplify right side
    289,655,539.20x = 66,816,922,643,884,520
  5. Step 5: Solve for x
    x = 66,816,922,643,884,520/289,655,539.20
  6. Step 6: Final answer
    x = 230,677,178.93

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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.