Home / 28,799,068,809.08-39,742,422,151.02-15,938,733,861.92

Finding the Fourth Proportional to 28,799,068,809.08, 39,742,422,151.02 and 15,938,733,861.92

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Solution

The fourth proportional to 28,799,068,809.08, 39,742,422,151.02 and 15,938,733,861.92 is: 21,995,290,677.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,799,068,809.08 : 39,742,422,151.02 = 15,938,733,861.92 : x
  2. Step 2: Convert to fraction form
    28,799,068,809.08/39,742,422,151.02 = 15,938,733,861.92/x
  3. Step 3: Cross multiply
    28,799,068,809.08x = 39,742,422,151.02 × 15,938,733,861.92
  4. Step 4: Simplify right side
    28,799,068,809.08x = 633,443,889,693,181,870,080
  5. Step 5: Solve for x
    x = 633,443,889,693,181,870,080/28,799,068,809.08
  6. Step 6: Final answer
    x = 21,995,290,677.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.