Home / 1,221,212,298.40-1,830,855,018.48-607,461,534.88

Finding the Fourth Proportional to 1,221,212,298.40, 1,830,855,018.48 and 607,461,534.88

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Solution

The fourth proportional to 1,221,212,298.40, 1,830,855,018.48 and 607,461,534.88 is: 910,713,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,212,298.40 : 1,830,855,018.48 = 607,461,534.88 : x
  2. Step 2: Convert to fraction form
    1,221,212,298.40/1,830,855,018.48 = 607,461,534.88/x
  3. Step 3: Cross multiply
    1,221,212,298.40x = 1,830,855,018.48 × 607,461,534.88
  4. Step 4: Simplify right side
    1,221,212,298.40x = 1,112,173,999,668,611,584
  5. Step 5: Solve for x
    x = 1,112,173,999,668,611,584/1,221,212,298.40
  6. Step 6: Final answer
    x = 910,713,068.58

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.