Home / 121,396,232,459.40-167,528,784,158.46-66,462,489,030.72

Finding the Fourth Proportional to 121,396,232,459.40, 167,528,784,158.46 and 66,462,489,030.72

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Solution

The fourth proportional to 121,396,232,459.40, 167,528,784,158.46 and 66,462,489,030.72 is: 91,719,320,722.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,396,232,459.40 : 167,528,784,158.46 = 66,462,489,030.72 : x
  2. Step 2: Convert to fraction form
    121,396,232,459.40/167,528,784,158.46 = 66,462,489,030.72/x
  3. Step 3: Cross multiply
    121,396,232,459.40x = 167,528,784,158.46 × 66,462,489,030.72
  4. Step 4: Simplify right side
    121,396,232,459.40x = 11,134,379,979,461,506,367,488
  5. Step 5: Solve for x
    x = 11,134,379,979,461,506,367,488/121,396,232,459.40
  6. Step 6: Final answer
    x = 91,719,320,722.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.