Home / 711,136,215.16-1,072,034,434.64-663,731,677.96

Finding the Fourth Proportional to 711,136,215.16, 1,072,034,434.64 and 663,731,677.96

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Solution

The fourth proportional to 711,136,215.16, 1,072,034,434.64 and 663,731,677.96 is: 1,000,572,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,136,215.16 : 1,072,034,434.64 = 663,731,677.96 : x
  2. Step 2: Convert to fraction form
    711,136,215.16/1,072,034,434.64 = 663,731,677.96/x
  3. Step 3: Cross multiply
    711,136,215.16x = 1,072,034,434.64 × 663,731,677.96
  4. Step 4: Simplify right side
    711,136,215.16x = 711,543,214,134,507,136
  5. Step 5: Solve for x
    x = 711,543,214,134,507,136/711,136,215.16
  6. Step 6: Final answer
    x = 1,000,572,322.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.