Home / 990,111,778-1,366,365,128.70-544,075,256.68

Finding the Fourth Proportional to 990,111,778, 1,366,365,128.70 and 544,075,256.68

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Solution

The fourth proportional to 990,111,778, 1,366,365,128.70 and 544,075,256.68 is: 750,829,830.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,111,778 : 1,366,365,128.70 = 544,075,256.68 : x
  2. Step 2: Convert to fraction form
    990,111,778/1,366,365,128.70 = 544,075,256.68/x
  3. Step 3: Cross multiply
    990,111,778x = 1,366,365,128.70 × 544,075,256.68
  4. Step 4: Simplify right side
    990,111,778x = 743,405,458,116,053,632
  5. Step 5: Solve for x
    x = 743,405,458,116,053,632/990,111,778
  6. Step 6: Final answer
    x = 750,829,830.16

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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.