Home / 145,166,020.40-217,749,030.60-99,181,866.80

Finding the Fourth Proportional to 145,166,020.40, 217,749,030.60 and 99,181,866.80

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Solution

The fourth proportional to 145,166,020.40, 217,749,030.60 and 99,181,866.80 is: 148,772,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,166,020.40 : 217,749,030.60 = 99,181,866.80 : x
  2. Step 2: Convert to fraction form
    145,166,020.40/217,749,030.60 = 99,181,866.80/x
  3. Step 3: Cross multiply
    145,166,020.40x = 217,749,030.60 × 99,181,866.80
  4. Step 4: Simplify right side
    145,166,020.40x = 21,596,755,348,798,324
  5. Step 5: Solve for x
    x = 21,596,755,348,798,324/145,166,020.40
  6. Step 6: Final answer
    x = 148,772,800.20

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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.