Home / 145,004,103.20-217,506,154.80-139,430,266.40

Finding the Fourth Proportional to 145,004,103.20, 217,506,154.80 and 139,430,266.40

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Solution

The fourth proportional to 145,004,103.20, 217,506,154.80 and 139,430,266.40 is: 209,145,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,004,103.20 : 217,506,154.80 = 139,430,266.40 : x
  2. Step 2: Convert to fraction form
    145,004,103.20/217,506,154.80 = 139,430,266.40/x
  3. Step 3: Cross multiply
    145,004,103.20x = 217,506,154.80 × 139,430,266.40
  4. Step 4: Simplify right side
    145,004,103.20x = 30,326,941,107,403,640
  5. Step 5: Solve for x
    x = 30,326,941,107,403,640/145,004,103.20
  6. Step 6: Final answer
    x = 209,145,399.60

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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.