Home / 20,210,303.35-30,319,883.70-9,980,064.10

Finding the Fourth Proportional to 20,210,303.35, 30,319,883.70 and 9,980,064.10

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Solution

The fourth proportional to 20,210,303.35, 30,319,883.70 and 9,980,064.10 is: 14,972,283.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210,303.35 : 30,319,883.70 = 9,980,064.10 : x
  2. Step 2: Convert to fraction form
    20,210,303.35/30,319,883.70 = 9,980,064.10/x
  3. Step 3: Cross multiply
    20,210,303.35x = 30,319,883.70 × 9,980,064.10
  4. Step 4: Simplify right side
    20,210,303.35x = 302,594,382,830,545.12
  5. Step 5: Solve for x
    x = 302,594,382,830,545.12/20,210,303.35
  6. Step 6: Final answer
    x = 14,972,283.08

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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.