Home / 137,898,075.21-190,300,627.45-76,020,628.11

Finding the Fourth Proportional to 137,898,075.21, 190,300,627.45 and 76,020,628.11

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Solution

The fourth proportional to 137,898,075.21, 190,300,627.45 and 76,020,628.11 is: 104,909,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,898,075.21 : 190,300,627.45 = 76,020,628.11 : x
  2. Step 2: Convert to fraction form
    137,898,075.21/190,300,627.45 = 76,020,628.11/x
  3. Step 3: Cross multiply
    137,898,075.21x = 190,300,627.45 × 76,020,628.11
  4. Step 4: Simplify right side
    137,898,075.21x = 14,466,773,228,476,106
  5. Step 5: Solve for x
    x = 14,466,773,228,476,106/137,898,075.21
  6. Step 6: Final answer
    x = 104,909,174.45

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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.