Home / 1,289,479,351.28-1,934,030,070.10-634,254,501.20

Finding the Fourth Proportional to 1,289,479,351.28, 1,934,030,070.10 and 634,254,501.20

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Solution

The fourth proportional to 1,289,479,351.28, 1,934,030,070.10 and 634,254,501.20 is: 951,288,809.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,479,351.28 : 1,934,030,070.10 = 634,254,501.20 : x
  2. Step 2: Convert to fraction form
    1,289,479,351.28/1,934,030,070.10 = 634,254,501.20/x
  3. Step 3: Cross multiply
    1,289,479,351.28x = 1,934,030,070.10 × 634,254,501.20
  4. Step 4: Simplify right side
    1,289,479,351.28x = 1,226,667,277,417,076,480
  5. Step 5: Solve for x
    x = 1,226,667,277,417,076,480/1,289,479,351.28
  6. Step 6: Final answer
    x = 951,288,809.86

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Double scale
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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.