Home / 163,971,721.40-245,957,582.10-42,803,173.40

Finding the Fourth Proportional to 163,971,721.40, 245,957,582.10 and 42,803,173.40

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Solution

The fourth proportional to 163,971,721.40, 245,957,582.10 and 42,803,173.40 is: 64,204,760.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,971,721.40 : 245,957,582.10 = 42,803,173.40 : x
  2. Step 2: Convert to fraction form
    163,971,721.40/245,957,582.10 = 42,803,173.40/x
  3. Step 3: Cross multiply
    163,971,721.40x = 245,957,582.10 × 42,803,173.40
  4. Step 4: Simplify right side
    163,971,721.40x = 10,527,765,035,671,036
  5. Step 5: Solve for x
    x = 10,527,765,035,671,036/163,971,721.40
  6. Step 6: Final answer
    x = 64,204,760.10

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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.