Home / 287,604,655.53-431,410,132.58-83,134,502.25

Finding the Fourth Proportional to 287,604,655.53, 431,410,132.58 and 83,134,502.25

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Solution

The fourth proportional to 287,604,655.53, 431,410,132.58 and 83,134,502.25 is: 124,702,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,604,655.53 : 431,410,132.58 = 83,134,502.25 : x
  2. Step 2: Convert to fraction form
    287,604,655.53/431,410,132.58 = 83,134,502.25/x
  3. Step 3: Cross multiply
    287,604,655.53x = 431,410,132.58 × 83,134,502.25
  4. Step 4: Simplify right side
    287,604,655.53x = 35,865,066,637,229,136
  5. Step 5: Solve for x
    x = 35,865,066,637,229,136/287,604,655.53
  6. Step 6: Final answer
    x = 124,702,663.70

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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.