Home / 838,788,000.40-1,258,182,000.60-471,455,981.20

Finding the Fourth Proportional to 838,788,000.40, 1,258,182,000.60 and 471,455,981.20

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Solution

The fourth proportional to 838,788,000.40, 1,258,182,000.60 and 471,455,981.20 is: 707,183,971.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,788,000.40 : 1,258,182,000.60 = 471,455,981.20 : x
  2. Step 2: Convert to fraction form
    838,788,000.40/1,258,182,000.60 = 471,455,981.20/x
  3. Step 3: Cross multiply
    838,788,000.40x = 1,258,182,000.60 × 471,455,981.20
  4. Step 4: Simplify right side
    838,788,000.40x = 593,177,429,621,051,904
  5. Step 5: Solve for x
    x = 593,177,429,621,051,904/838,788,000.40
  6. Step 6: Final answer
    x = 707,183,971.80

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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.