Home / 1,157,130,143.81-1,596,812,437.51-680,851,361.78

Finding the Fourth Proportional to 1,157,130,143.81, 1,596,812,437.51 and 680,851,361.78

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Solution

The fourth proportional to 1,157,130,143.81, 1,596,812,437.51 and 680,851,361.78 is: 939,558,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,130,143.81 : 1,596,812,437.51 = 680,851,361.78 : x
  2. Step 2: Convert to fraction form
    1,157,130,143.81/1,596,812,437.51 = 680,851,361.78/x
  3. Step 3: Cross multiply
    1,157,130,143.81x = 1,596,812,437.51 × 680,851,361.78
  4. Step 4: Simplify right side
    1,157,130,143.81x = 1,087,191,922,585,924,608
  5. Step 5: Solve for x
    x = 1,087,191,922,585,924,608/1,157,130,143.81
  6. Step 6: Final answer
    x = 939,558,897.85

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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.