Home / 289,655,543.70-434,987,200.35-153,606,647.70

Finding the Fourth Proportional to 289,655,543.70, 434,987,200.35 and 153,606,647.70

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Solution

The fourth proportional to 289,655,543.70, 434,987,200.35 and 153,606,647.70 is: 230,677,185.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,655,543.70 : 434,987,200.35 = 153,606,647.70 : x
  2. Step 2: Convert to fraction form
    289,655,543.70/434,987,200.35 = 153,606,647.70/x
  3. Step 3: Cross multiply
    289,655,543.70x = 434,987,200.35 × 153,606,647.70
  4. Step 4: Simplify right side
    289,655,543.70x = 66,816,925,638,171,768
  5. Step 5: Solve for x
    x = 66,816,925,638,171,768/289,655,543.70
  6. Step 6: Final answer
    x = 230,677,185.68

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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.