Home / 676,386,111,655.57-933,416,524,164.30-398,300,807,742.61

Finding the Fourth Proportional to 676,386,111,655.57, 933,416,524,164.30 and 398,300,807,742.61

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Solution

The fourth proportional to 676,386,111,655.57, 933,416,524,164.30 and 398,300,807,742.61 is: 549,657,287,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,386,111,655.57 : 933,416,524,164.30 = 398,300,807,742.61 : x
  2. Step 2: Convert to fraction form
    676,386,111,655.57/933,416,524,164.30 = 398,300,807,742.61/x
  3. Step 3: Cross multiply
    676,386,111,655.57x = 933,416,524,164.30 × 398,300,807,742.61
  4. Step 4: Simplify right side
    676,386,111,655.57x = 371,780,555,534,940,174,811,136
  5. Step 5: Solve for x
    x = 371,780,555,534,940,174,811,136/676,386,111,655.57
  6. Step 6: Final answer
    x = 549,657,287,647.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.