Home / 657,598,619.40-907,272,572.40-448,391,554.80

Finding the Fourth Proportional to 657,598,619.40, 907,272,572.40 and 448,391,554.80

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Solution

The fourth proportional to 657,598,619.40, 907,272,572.40 and 448,391,554.80 is: 618,634,752.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,598,619.40 : 907,272,572.40 = 448,391,554.80 : x
  2. Step 2: Convert to fraction form
    657,598,619.40/907,272,572.40 = 448,391,554.80/x
  3. Step 3: Cross multiply
    657,598,619.40x = 907,272,572.40 × 448,391,554.80
  4. Step 4: Simplify right side
    657,598,619.40x = 406,813,359,365,831,552
  5. Step 5: Solve for x
    x = 406,813,359,365,831,552/657,598,619.40
  6. Step 6: Final answer
    x = 618,634,752.82

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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.