Home / 918,372,632.72-1,266,574,534.80-776,015,816.36

Finding the Fourth Proportional to 918,372,632.72, 1,266,574,534.80 and 776,015,816.36

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Solution

The fourth proportional to 918,372,632.72, 1,266,574,534.80 and 776,015,816.36 is: 1,070,242,989.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,372,632.72 : 1,266,574,534.80 = 776,015,816.36 : x
  2. Step 2: Convert to fraction form
    918,372,632.72/1,266,574,534.80 = 776,015,816.36/x
  3. Step 3: Cross multiply
    918,372,632.72x = 1,266,574,534.80 × 776,015,816.36
  4. Step 4: Simplify right side
    918,372,632.72x = 982,881,871,603,609,216
  5. Step 5: Solve for x
    x = 982,881,871,603,609,216/918,372,632.72
  6. Step 6: Final answer
    x = 1,070,242,989.16

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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.