Home / 145,514,123.40-218,430,617.40-90,988,276.80

Finding the Fourth Proportional to 145,514,123.40, 218,430,617.40 and 90,988,276.80

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Solution

The fourth proportional to 145,514,123.40, 218,430,617.40 and 90,988,276.80 is: 136,582,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,514,123.40 : 218,430,617.40 = 90,988,276.80 : x
  2. Step 2: Convert to fraction form
    145,514,123.40/218,430,617.40 = 90,988,276.80/x
  3. Step 3: Cross multiply
    145,514,123.40x = 218,430,617.40 × 90,988,276.80
  4. Step 4: Simplify right side
    145,514,123.40x = 19,874,625,477,586,096
  5. Step 5: Solve for x
    x = 19,874,625,477,586,096/145,514,123.40
  6. Step 6: Final answer
    x = 136,582,106.35

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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.