Home / 790,565,776.29-1,090,980,749.66-438,194,706.98

Finding the Fourth Proportional to 790,565,776.29, 1,090,980,749.66 and 438,194,706.98

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Solution

The fourth proportional to 790,565,776.29, 1,090,980,749.66 and 438,194,706.98 is: 604,708,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,565,776.29 : 1,090,980,749.66 = 438,194,706.98 : x
  2. Step 2: Convert to fraction form
    790,565,776.29/1,090,980,749.66 = 438,194,706.98/x
  3. Step 3: Cross multiply
    790,565,776.29x = 1,090,980,749.66 × 438,194,706.98
  4. Step 4: Simplify right side
    790,565,776.29x = 478,061,989,910,438,592
  5. Step 5: Solve for x
    x = 478,061,989,910,438,592/790,565,776.29
  6. Step 6: Final answer
    x = 604,708,683.64

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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.