Home / 755,776,430.70-1,133,664,646.05-319,569,657.90

Finding the Fourth Proportional to 755,776,430.70, 1,133,664,646.05 and 319,569,657.90

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Solution

The fourth proportional to 755,776,430.70, 1,133,664,646.05 and 319,569,657.90 is: 479,354,486.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,776,430.70 : 1,133,664,646.05 = 319,569,657.90 : x
  2. Step 2: Convert to fraction form
    755,776,430.70/1,133,664,646.05 = 319,569,657.90/x
  3. Step 3: Cross multiply
    755,776,430.70x = 1,133,664,646.05 × 319,569,657.90
  4. Step 4: Simplify right side
    755,776,430.70x = 362,284,823,111,523,072
  5. Step 5: Solve for x
    x = 362,284,823,111,523,072/755,776,430.70
  6. Step 6: Final answer
    x = 479,354,486.85

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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.