Home / 13,507,564,995.08-18,640,441,460.02-7,486,459,123.88

Finding the Fourth Proportional to 13,507,564,995.08, 18,640,441,460.02 and 7,486,459,123.88

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Solution

The fourth proportional to 13,507,564,995.08, 18,640,441,460.02 and 7,486,459,123.88 is: 10,331,314,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,564,995.08 : 18,640,441,460.02 = 7,486,459,123.88 : x
  2. Step 2: Convert to fraction form
    13,507,564,995.08/18,640,441,460.02 = 7,486,459,123.88/x
  3. Step 3: Cross multiply
    13,507,564,995.08x = 18,640,441,460.02 × 7,486,459,123.88
  4. Step 4: Simplify right side
    13,507,564,995.08x = 139,550,903,041,517,764,608
  5. Step 5: Solve for x
    x = 139,550,903,041,517,764,608/13,507,564,995.08
  6. Step 6: Final answer
    x = 10,331,314,570.19

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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.