Home / 1,210,771,216.80-1,670,864,263.88-653,854,214.66

Finding the Fourth Proportional to 1,210,771,216.80, 1,670,864,263.88 and 653,854,214.66

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Solution

The fourth proportional to 1,210,771,216.80, 1,670,864,263.88 and 653,854,214.66 is: 902,318,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,771,216.80 : 1,670,864,263.88 = 653,854,214.66 : x
  2. Step 2: Convert to fraction form
    1,210,771,216.80/1,670,864,263.88 = 653,854,214.66/x
  3. Step 3: Cross multiply
    1,210,771,216.80x = 1,670,864,263.88 × 653,854,214.66
  4. Step 4: Simplify right side
    1,210,771,216.80x = 1,092,501,641,051,092,736
  5. Step 5: Solve for x
    x = 1,092,501,641,051,092,736/1,210,771,216.80
  6. Step 6: Final answer
    x = 902,318,807.96

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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.