Home / 138,075,210.99-190,543,740.83-75,351,309.11

Finding the Fourth Proportional to 138,075,210.99, 190,543,740.83 and 75,351,309.11

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Solution

The fourth proportional to 138,075,210.99, 190,543,740.83 and 75,351,309.11 is: 103,984,779.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,075,210.99 : 190,543,740.83 = 75,351,309.11 : x
  2. Step 2: Convert to fraction form
    138,075,210.99/190,543,740.83 = 75,351,309.11/x
  3. Step 3: Cross multiply
    138,075,210.99x = 190,543,740.83 × 75,351,309.11
  4. Step 4: Simplify right side
    138,075,210.99x = 14,357,720,312,927,582
  5. Step 5: Solve for x
    x = 14,357,720,312,927,582/138,075,210.99
  6. Step 6: Final answer
    x = 103,984,779.09

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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.