Home / 70,432,421.40-105,648,632.10-43,222,642.20

Finding the Fourth Proportional to 70,432,421.40, 105,648,632.10 and 43,222,642.20

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Solution

The fourth proportional to 70,432,421.40, 105,648,632.10 and 43,222,642.20 is: 64,833,963.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,432,421.40 : 105,648,632.10 = 43,222,642.20 : x
  2. Step 2: Convert to fraction form
    70,432,421.40/105,648,632.10 = 43,222,642.20/x
  3. Step 3: Cross multiply
    70,432,421.40x = 105,648,632.10 × 43,222,642.20
  4. Step 4: Simplify right side
    70,432,421.40x = 4,566,413,024,177,735
  5. Step 5: Solve for x
    x = 4,566,413,024,177,735/70,432,421.40
  6. Step 6: Final answer
    x = 64,833,963.30

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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.