Home / 1,398,745,957.17-1,930,259,426.98-763,666,429.17

Finding the Fourth Proportional to 1,398,745,957.17, 1,930,259,426.98 and 763,666,429.17

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Solution

The fourth proportional to 1,398,745,957.17, 1,930,259,426.98 and 763,666,429.17 is: 1,053,854,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,745,957.17 : 1,930,259,426.98 = 763,666,429.17 : x
  2. Step 2: Convert to fraction form
    1,398,745,957.17/1,930,259,426.98 = 763,666,429.17/x
  3. Step 3: Cross multiply
    1,398,745,957.17x = 1,930,259,426.98 × 763,666,429.17
  4. Step 4: Simplify right side
    1,398,745,957.17x = 1,474,074,323,973,547,008
  5. Step 5: Solve for x
    x = 1,474,074,323,973,547,008/1,398,745,957.17
  6. Step 6: Final answer
    x = 1,053,854,215.93

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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.