Home / 1,075,664,786.21-1,484,397,247.15-657,946,386.53

Finding the Fourth Proportional to 1,075,664,786.21, 1,484,397,247.15 and 657,946,386.53

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Solution

The fourth proportional to 1,075,664,786.21, 1,484,397,247.15 and 657,946,386.53 is: 907,953,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,664,786.21 : 1,484,397,247.15 = 657,946,386.53 : x
  2. Step 2: Convert to fraction form
    1,075,664,786.21/1,484,397,247.15 = 657,946,386.53/x
  3. Step 3: Cross multiply
    1,075,664,786.21x = 1,484,397,247.15 × 657,946,386.53
  4. Step 4: Simplify right side
    1,075,664,786.21x = 976,653,804,939,488,000
  5. Step 5: Solve for x
    x = 976,653,804,939,488,000/1,075,664,786.21
  6. Step 6: Final answer
    x = 907,953,683.58

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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.