Home / 770,439,649.43-1,155,867,981.84-549,390,253.34

Finding the Fourth Proportional to 770,439,649.43, 1,155,867,981.84 and 549,390,253.34

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Solution

The fourth proportional to 770,439,649.43, 1,155,867,981.84 and 549,390,253.34 is: 824,234,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,439,649.43 : 1,155,867,981.84 = 549,390,253.34 : x
  2. Step 2: Convert to fraction form
    770,439,649.43/1,155,867,981.84 = 549,390,253.34/x
  3. Step 3: Cross multiply
    770,439,649.43x = 1,155,867,981.84 × 549,390,253.34
  4. Step 4: Simplify right side
    770,439,649.43x = 635,022,603,364,892,800
  5. Step 5: Solve for x
    x = 635,022,603,364,892,800/770,439,649.43
  6. Step 6: Final answer
    x = 824,234,064.07

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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.