Home / 99,661,389.60-149,492,084.40-98,989,543.20

Finding the Fourth Proportional to 99,661,389.60, 149,492,084.40 and 98,989,543.20

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Solution

The fourth proportional to 99,661,389.60, 149,492,084.40 and 98,989,543.20 is: 148,484,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,661,389.60 : 149,492,084.40 = 98,989,543.20 : x
  2. Step 2: Convert to fraction form
    99,661,389.60/149,492,084.40 = 98,989,543.20/x
  3. Step 3: Cross multiply
    99,661,389.60x = 149,492,084.40 × 98,989,543.20
  4. Step 4: Simplify right side
    99,661,389.60x = 14,798,153,146,771,848
  5. Step 5: Solve for x
    x = 14,798,153,146,771,848/99,661,389.60
  6. Step 6: Final answer
    x = 148,484,314.80

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1.5x scale

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.