Home / 1,249,289,824.80-1,724,020,121.64-692,408,824.32

Finding the Fourth Proportional to 1,249,289,824.80, 1,724,020,121.64 and 692,408,824.32

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Solution

The fourth proportional to 1,249,289,824.80, 1,724,020,121.64 and 692,408,824.32 is: 955,524,268.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,289,824.80 : 1,724,020,121.64 = 692,408,824.32 : x
  2. Step 2: Convert to fraction form
    1,249,289,824.80/1,724,020,121.64 = 692,408,824.32/x
  3. Step 3: Cross multiply
    1,249,289,824.80x = 1,724,020,121.64 × 692,408,824.32
  4. Step 4: Simplify right side
    1,249,289,824.80x = 1,193,726,745,528,775,936
  5. Step 5: Solve for x
    x = 1,193,726,745,528,775,936/1,249,289,824.80
  6. Step 6: Final answer
    x = 955,524,268.13

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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.