Home / 21,039,698.40-31,559,547.60-9,072,434.40

Finding the Fourth Proportional to 21,039,698.40, 31,559,547.60 and 9,072,434.40

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Solution

The fourth proportional to 21,039,698.40, 31,559,547.60 and 9,072,434.40 is: 13,608,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039,698.40 : 31,559,547.60 = 9,072,434.40 : x
  2. Step 2: Convert to fraction form
    21,039,698.40/31,559,547.60 = 9,072,434.40/x
  3. Step 3: Cross multiply
    21,039,698.40x = 31,559,547.60 × 9,072,434.40
  4. Step 4: Simplify right side
    21,039,698.40x = 286,321,925,294,677.44
  5. Step 5: Solve for x
    x = 286,321,925,294,677.44/21,039,698.40
  6. Step 6: Final answer
    x = 13,608,651.60

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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.