Home / 655,918,888.72-905,174,089.44-373,657,146.16

Finding the Fourth Proportional to 655,918,888.72, 905,174,089.44 and 373,657,146.16

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Solution

The fourth proportional to 655,918,888.72, 905,174,089.44 and 373,657,146.16 is: 515,650,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,918,888.72 : 905,174,089.44 = 373,657,146.16 : x
  2. Step 2: Convert to fraction form
    655,918,888.72/905,174,089.44 = 373,657,146.16/x
  3. Step 3: Cross multiply
    655,918,888.72x = 905,174,089.44 × 373,657,146.16
  4. Step 4: Simplify right side
    655,918,888.72x = 338,224,767,038,127,040
  5. Step 5: Solve for x
    x = 338,224,767,038,127,040/655,918,888.72
  6. Step 6: Final answer
    x = 515,650,292.83

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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.