Home / 646,864,488.80-970,296,733.20-186,817,666.40

Finding the Fourth Proportional to 646,864,488.80, 970,296,733.20 and 186,817,666.40

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Solution

The fourth proportional to 646,864,488.80, 970,296,733.20 and 186,817,666.40 is: 280,226,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,864,488.80 : 970,296,733.20 = 186,817,666.40 : x
  2. Step 2: Convert to fraction form
    646,864,488.80/970,296,733.20 = 186,817,666.40/x
  3. Step 3: Cross multiply
    646,864,488.80x = 970,296,733.20 × 186,817,666.40
  4. Step 4: Simplify right side
    646,864,488.80x = 181,268,571,411,967,424
  5. Step 5: Solve for x
    x = 181,268,571,411,967,424/646,864,488.80
  6. Step 6: Final answer
    x = 280,226,499.60

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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.