Home / 1,041,653,607.84-1,438,675,003.86-686,011,182.92

Finding the Fourth Proportional to 1,041,653,607.84, 1,438,675,003.86 and 686,011,182.92

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Solution

The fourth proportional to 1,041,653,607.84, 1,438,675,003.86 and 686,011,182.92 is: 947,481,133.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041,653,607.84 : 1,438,675,003.86 = 686,011,182.92 : x
  2. Step 2: Convert to fraction form
    1,041,653,607.84/1,438,675,003.86 = 686,011,182.92/x
  3. Step 3: Cross multiply
    1,041,653,607.84x = 1,438,675,003.86 × 686,011,182.92
  4. Step 4: Simplify right side
    1,041,653,607.84x = 986,947,141,235,433,984
  5. Step 5: Solve for x
    x = 986,947,141,235,433,984/1,041,653,607.84
  6. Step 6: Final answer
    x = 947,481,133.66

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Double scale
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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.