Home / 28,457,981.09-42,680,582.86-13,090,511.64

Finding the Fourth Proportional to 28,457,981.09, 42,680,582.86 and 13,090,511.64

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Solution

The fourth proportional to 28,457,981.09, 42,680,582.86 and 13,090,511.64 is: 19,632,828.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,457,981.09 : 42,680,582.86 = 13,090,511.64 : x
  2. Step 2: Convert to fraction form
    28,457,981.09/42,680,582.86 = 13,090,511.64/x
  3. Step 3: Cross multiply
    28,457,981.09x = 42,680,582.86 × 13,090,511.64
  4. Step 4: Simplify right side
    28,457,981.09x = 558,710,666,730,814.50
  5. Step 5: Solve for x
    x = 558,710,666,730,814.50/28,457,981.09
  6. Step 6: Final answer
    x = 19,632,828.66

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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.