Home / 210,070,556.40-315,430,237.80-114,519,068.40

Finding the Fourth Proportional to 210,070,556.40, 315,430,237.80 and 114,519,068.40

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Solution

The fourth proportional to 210,070,556.40, 315,430,237.80 and 114,519,068.40 is: 171,955,449.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,070,556.40 : 315,430,237.80 = 114,519,068.40 : x
  2. Step 2: Convert to fraction form
    210,070,556.40/315,430,237.80 = 114,519,068.40/x
  3. Step 3: Cross multiply
    210,070,556.40x = 315,430,237.80 × 114,519,068.40
  4. Step 4: Simplify right side
    210,070,556.40x = 36,122,776,978,046,472
  5. Step 5: Solve for x
    x = 36,122,776,978,046,472/210,070,556.40
  6. Step 6: Final answer
    x = 171,955,449.62

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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.