Home / 163,704,020.40-245,556,030.60-81,835,534.35

Finding the Fourth Proportional to 163,704,020.40, 245,556,030.60 and 81,835,534.35

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Solution

The fourth proportional to 163,704,020.40, 245,556,030.60 and 81,835,534.35 is: 122,753,301.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,704,020.40 : 245,556,030.60 = 81,835,534.35 : x
  2. Step 2: Convert to fraction form
    163,704,020.40/245,556,030.60 = 81,835,534.35/x
  3. Step 3: Cross multiply
    163,704,020.40x = 245,556,030.60 × 81,835,534.35
  4. Step 4: Simplify right side
    163,704,020.40x = 20,095,208,977,015,948
  5. Step 5: Solve for x
    x = 20,095,208,977,015,948/163,704,020.40
  6. Step 6: Final answer
    x = 122,753,301.53

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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.