Home / 85,312,312,378.83-117,729,548,247.74-47,249,702,158.68

Finding the Fourth Proportional to 85,312,312,378.83, 117,729,548,247.74 and 47,249,702,158.68

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Solution

The fourth proportional to 85,312,312,378.83, 117,729,548,247.74 and 47,249,702,158.68 is: 65,203,789,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,312,312,378.83 : 117,729,548,247.74 = 47,249,702,158.68 : x
  2. Step 2: Convert to fraction form
    85,312,312,378.83/117,729,548,247.74 = 47,249,702,158.68/x
  3. Step 3: Cross multiply
    85,312,312,378.83x = 117,729,548,247.74 × 47,249,702,158.68
  4. Step 4: Simplify right side
    85,312,312,378.83x = 5,562,686,089,981,661,806,592
  5. Step 5: Solve for x
    x = 5,562,686,089,981,661,806,592/85,312,312,378.83
  6. Step 6: Final answer
    x = 65,203,789,873.62

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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.