Home / 145,002,782.90-200,108,170.94-89,280,349.77

Finding the Fourth Proportional to 145,002,782.90, 200,108,170.94 and 89,280,349.77

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Solution

The fourth proportional to 145,002,782.90, 200,108,170.94 and 89,280,349.77 is: 123,209,549.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,002,782.90 : 200,108,170.94 = 89,280,349.77 : x
  2. Step 2: Convert to fraction form
    145,002,782.90/200,108,170.94 = 89,280,349.77/x
  3. Step 3: Cross multiply
    145,002,782.90x = 200,108,170.94 × 89,280,349.77
  4. Step 4: Simplify right side
    145,002,782.90x = 17,865,727,492,911,748
  5. Step 5: Solve for x
    x = 17,865,727,492,911,748/145,002,782.90
  6. Step 6: Final answer
    x = 123,209,549.06

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1.5x scale

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.