Home / 553,666,853.70-830,500,280.55-144,723,004.20

Finding the Fourth Proportional to 553,666,853.70, 830,500,280.55 and 144,723,004.20

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Solution

The fourth proportional to 553,666,853.70, 830,500,280.55 and 144,723,004.20 is: 217,084,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,666,853.70 : 830,500,280.55 = 144,723,004.20 : x
  2. Step 2: Convert to fraction form
    553,666,853.70/830,500,280.55 = 144,723,004.20/x
  3. Step 3: Cross multiply
    553,666,853.70x = 830,500,280.55 × 144,723,004.20
  4. Step 4: Simplify right side
    553,666,853.70x = 120,192,495,590,138,816
  5. Step 5: Solve for x
    x = 120,192,495,590,138,816/553,666,853.70
  6. Step 6: Final answer
    x = 217,084,506.30

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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.