Home / 99,645,637.30-149,492,075.55-51,130,978.90

Finding the Fourth Proportional to 99,645,637.30, 149,492,075.55 and 51,130,978.90

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Solution

The fourth proportional to 99,645,637.30, 149,492,075.55 and 51,130,978.90 is: 76,708,588.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645,637.30 : 149,492,075.55 = 51,130,978.90 : x
  2. Step 2: Convert to fraction form
    99,645,637.30/149,492,075.55 = 51,130,978.90/x
  3. Step 3: Cross multiply
    99,645,637.30x = 149,492,075.55 × 51,130,978.90
  4. Step 4: Simplify right side
    99,645,637.30x = 7,643,676,160,664,256
  5. Step 5: Solve for x
    x = 7,643,676,160,664,256/99,645,637.30
  6. Step 6: Final answer
    x = 76,708,588.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.