Home / 511,256,117.70-766,884,176.55-166,221,000.90

Finding the Fourth Proportional to 511,256,117.70, 766,884,176.55 and 166,221,000.90

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Solution

The fourth proportional to 511,256,117.70, 766,884,176.55 and 166,221,000.90 is: 249,331,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,256,117.70 : 766,884,176.55 = 166,221,000.90 : x
  2. Step 2: Convert to fraction form
    511,256,117.70/766,884,176.55 = 166,221,000.90/x
  3. Step 3: Cross multiply
    511,256,117.70x = 766,884,176.55 × 166,221,000.90
  4. Step 4: Simplify right side
    511,256,117.70x = 127,472,255,400,513,312
  5. Step 5: Solve for x
    x = 127,472,255,400,513,312/511,256,117.70
  6. Step 6: Final answer
    x = 249,331,501.35

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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.