Home / 525,315,533.80-787,973,300.70-307,637,300.20

Finding the Fourth Proportional to 525,315,533.80, 787,973,300.70 and 307,637,300.20

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Solution

The fourth proportional to 525,315,533.80, 787,973,300.70 and 307,637,300.20 is: 461,455,950.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,315,533.80 : 787,973,300.70 = 307,637,300.20 : x
  2. Step 2: Convert to fraction form
    525,315,533.80/787,973,300.70 = 307,637,300.20/x
  3. Step 3: Cross multiply
    525,315,533.80x = 787,973,300.70 × 307,637,300.20
  4. Step 4: Simplify right side
    525,315,533.80x = 242,409,978,857,030,784
  5. Step 5: Solve for x
    x = 242,409,978,857,030,784/525,315,533.80
  6. Step 6: Final answer
    x = 461,455,950.30

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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.