Home / 15,406,779.69-21,261,323.48-8,880,365.07

Finding the Fourth Proportional to 15,406,779.69, 21,261,323.48 and 8,880,365.07

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Solution

The fourth proportional to 15,406,779.69, 21,261,323.48 and 8,880,365.07 is: 12,254,885.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,779.69 : 21,261,323.48 = 8,880,365.07 : x
  2. Step 2: Convert to fraction form
    15,406,779.69/21,261,323.48 = 8,880,365.07/x
  3. Step 3: Cross multiply
    15,406,779.69x = 21,261,323.48 × 8,880,365.07
  4. Step 4: Simplify right side
    15,406,779.69x = 188,808,314,329,361.03
  5. Step 5: Solve for x
    x = 188,808,314,329,361.03/15,406,779.69
  6. Step 6: Final answer
    x = 12,254,885.07

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1.5x scale

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.