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Finding the Fourth Proportional to 711,936,038.40, 999,576,998.40 and 711,936,038.40

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Solution

The fourth proportional to 711,936,038.40, 999,576,998.40 and 711,936,038.40 is: 999,576,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,936,038.40 : 999,576,998.40 = 711,936,038.40 : x
  2. Step 2: Convert to fraction form
    711,936,038.40/999,576,998.40 = 711,936,038.40/x
  3. Step 3: Cross multiply
    711,936,038.40x = 999,576,998.40 × 711,936,038.40
  4. Step 4: Simplify right side
    711,936,038.40x = 711,634,888,316,659,072
  5. Step 5: Solve for x
    x = 711,634,888,316,659,072/711,936,038.40
  6. Step 6: Final answer
    x = 999,576,998.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.