Home / 112,122,421.40-168,183,632.10-83,424,607.40

Finding the Fourth Proportional to 112,122,421.40, 168,183,632.10 and 83,424,607.40

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Solution

The fourth proportional to 112,122,421.40, 168,183,632.10 and 83,424,607.40 is: 125,136,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,122,421.40 : 168,183,632.10 = 83,424,607.40 : x
  2. Step 2: Convert to fraction form
    112,122,421.40/168,183,632.10 = 83,424,607.40/x
  3. Step 3: Cross multiply
    112,122,421.40x = 168,183,632.10 × 83,424,607.40
  4. Step 4: Simplify right side
    112,122,421.40x = 14,030,653,479,048,538
  5. Step 5: Solve for x
    x = 14,030,653,479,048,538/112,122,421.40
  6. Step 6: Final answer
    x = 125,136,911.10

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1.5x scale

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.