Home / 9,169,347,405.40-12,653,742,270.64-5,209,266,373.72

Finding the Fourth Proportional to 9,169,347,405.40, 12,653,742,270.64 and 5,209,266,373.72

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Solution

The fourth proportional to 9,169,347,405.40, 12,653,742,270.64 and 5,209,266,373.72 is: 7,188,811,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169,347,405.40 : 12,653,742,270.64 = 5,209,266,373.72 : x
  2. Step 2: Convert to fraction form
    9,169,347,405.40/12,653,742,270.64 = 5,209,266,373.72/x
  3. Step 3: Cross multiply
    9,169,347,405.40x = 12,653,742,270.64 × 5,209,266,373.72
  4. Step 4: Simplify right side
    9,169,347,405.40x = 65,916,714,112,164,315,136
  5. Step 5: Solve for x
    x = 65,916,714,112,164,315,136/9,169,347,405.40
  6. Step 6: Final answer
    x = 7,188,811,940.24

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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.