Home / 1,249,289,835.80-1,724,020,136.88-692,408,835.32

Finding the Fourth Proportional to 1,249,289,835.80, 1,724,020,136.88 and 692,408,835.32

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Solution

The fourth proportional to 1,249,289,835.80, 1,724,020,136.88 and 692,408,835.32 is: 955,524,283.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,289,835.80 : 1,724,020,136.88 = 692,408,835.32 : x
  2. Step 2: Convert to fraction form
    1,249,289,835.80/1,724,020,136.88 = 692,408,835.32/x
  3. Step 3: Cross multiply
    1,249,289,835.80x = 1,724,020,136.88 × 692,408,835.32
  4. Step 4: Simplify right side
    1,249,289,835.80x = 1,193,726,775,045,307,904
  5. Step 5: Solve for x
    x = 1,193,726,775,045,307,904/1,249,289,835.80
  6. Step 6: Final answer
    x = 955,524,283.35

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Double scale
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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.