Home / 145,185,895.40-217,778,843.10-72,626,484.20

Finding the Fourth Proportional to 145,185,895.40, 217,778,843.10 and 72,626,484.20

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Solution

The fourth proportional to 145,185,895.40, 217,778,843.10 and 72,626,484.20 is: 108,939,726.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,185,895.40 : 217,778,843.10 = 72,626,484.20 : x
  2. Step 2: Convert to fraction form
    145,185,895.40/217,778,843.10 = 72,626,484.20/x
  3. Step 3: Cross multiply
    145,185,895.40x = 217,778,843.10 × 72,626,484.20
  4. Step 4: Simplify right side
    145,185,895.40x = 15,816,511,707,496,430
  5. Step 5: Solve for x
    x = 15,816,511,707,496,430/145,185,895.40
  6. Step 6: Final answer
    x = 108,939,726.30

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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.