Home / 112,806,663.40-169,209,995.10-74,459,207.80

Finding the Fourth Proportional to 112,806,663.40, 169,209,995.10 and 74,459,207.80

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Solution

The fourth proportional to 112,806,663.40, 169,209,995.10 and 74,459,207.80 is: 111,688,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,806,663.40 : 169,209,995.10 = 74,459,207.80 : x
  2. Step 2: Convert to fraction form
    112,806,663.40/169,209,995.10 = 74,459,207.80/x
  3. Step 3: Cross multiply
    112,806,663.40x = 169,209,995.10 × 74,459,207.80
  4. Step 4: Simplify right side
    112,806,663.40x = 12,599,242,186,987,880
  5. Step 5: Solve for x
    x = 12,599,242,186,987,880/112,806,663.40
  6. Step 6: Final answer
    x = 111,688,811.70

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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.