Home / 663,877,386.40-995,816,079.60-470,007,709.60

Finding the Fourth Proportional to 663,877,386.40, 995,816,079.60 and 470,007,709.60

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Solution

The fourth proportional to 663,877,386.40, 995,816,079.60 and 470,007,709.60 is: 705,011,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,877,386.40 : 995,816,079.60 = 470,007,709.60 : x
  2. Step 2: Convert to fraction form
    663,877,386.40/995,816,079.60 = 470,007,709.60/x
  3. Step 3: Cross multiply
    663,877,386.40x = 995,816,079.60 × 470,007,709.60
  4. Step 4: Simplify right side
    663,877,386.40x = 468,041,234,755,647,296
  5. Step 5: Solve for x
    x = 468,041,234,755,647,296/663,877,386.40
  6. Step 6: Final answer
    x = 705,011,564.40

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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.