Home / 825,865,923.60-1,238,798,885.40-458,533,904.40

Finding the Fourth Proportional to 825,865,923.60, 1,238,798,885.40 and 458,533,904.40

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Solution

The fourth proportional to 825,865,923.60, 1,238,798,885.40 and 458,533,904.40 is: 687,800,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,865,923.60 : 1,238,798,885.40 = 458,533,904.40 : x
  2. Step 2: Convert to fraction form
    825,865,923.60/1,238,798,885.40 = 458,533,904.40/x
  3. Step 3: Cross multiply
    825,865,923.60x = 1,238,798,885.40 × 458,533,904.40
  4. Step 4: Simplify right side
    825,865,923.60x = 568,031,289,688,830,144
  5. Step 5: Solve for x
    x = 568,031,289,688,830,144/825,865,923.60
  6. Step 6: Final answer
    x = 687,800,856.60

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1.5x scale

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.