Home / 143,804,430.90-215,706,646.35-99,801,116.10

Finding the Fourth Proportional to 143,804,430.90, 215,706,646.35 and 99,801,116.10

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Solution

The fourth proportional to 143,804,430.90, 215,706,646.35 and 99,801,116.10 is: 149,701,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,804,430.90 : 215,706,646.35 = 99,801,116.10 : x
  2. Step 2: Convert to fraction form
    143,804,430.90/215,706,646.35 = 99,801,116.10/x
  3. Step 3: Cross multiply
    143,804,430.90x = 215,706,646.35 × 99,801,116.10
  4. Step 4: Simplify right side
    143,804,430.90x = 21,527,764,055,917,988
  5. Step 5: Solve for x
    x = 21,527,764,055,917,988/143,804,430.90
  6. Step 6: Final answer
    x = 149,701,674.15

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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.