Home / 139,765,824,306.40-209,648,736,459.60-45,438,589,746.40

Finding the Fourth Proportional to 139,765,824,306.40, 209,648,736,459.60 and 45,438,589,746.40

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Solution

The fourth proportional to 139,765,824,306.40, 209,648,736,459.60 and 45,438,589,746.40 is: 68,157,884,619.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,765,824,306.40 : 209,648,736,459.60 = 45,438,589,746.40 : x
  2. Step 2: Convert to fraction form
    139,765,824,306.40/209,648,736,459.60 = 45,438,589,746.40/x
  3. Step 3: Cross multiply
    139,765,824,306.40x = 209,648,736,459.60 × 45,438,589,746.40
  4. Step 4: Simplify right side
    139,765,824,306.40x = 9,526,142,926,838,896,263,168
  5. Step 5: Solve for x
    x = 9,526,142,926,838,896,263,168/139,765,824,306.40
  6. Step 6: Final answer
    x = 68,157,884,619.60

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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.