Home / 213,894,871.60-320,842,307.40-99,103,615.60

Finding the Fourth Proportional to 213,894,871.60, 320,842,307.40 and 99,103,615.60

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Solution

The fourth proportional to 213,894,871.60, 320,842,307.40 and 99,103,615.60 is: 148,655,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,894,871.60 : 320,842,307.40 = 99,103,615.60 : x
  2. Step 2: Convert to fraction form
    213,894,871.60/320,842,307.40 = 99,103,615.60/x
  3. Step 3: Cross multiply
    213,894,871.60x = 320,842,307.40 × 99,103,615.60
  4. Step 4: Simplify right side
    213,894,871.60x = 31,796,632,700,786,632
  5. Step 5: Solve for x
    x = 31,796,632,700,786,632/213,894,871.60
  6. Step 6: Final answer
    x = 148,655,423.40

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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.