Home / 1,007,360,748.70-1,390,261,276.95-605,604,562.78

Finding the Fourth Proportional to 1,007,360,748.70, 1,390,261,276.95 and 605,604,562.78

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Solution

The fourth proportional to 1,007,360,748.70, 1,390,261,276.95 and 605,604,562.78 is: 835,796,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,360,748.70 : 1,390,261,276.95 = 605,604,562.78 : x
  2. Step 2: Convert to fraction form
    1,007,360,748.70/1,390,261,276.95 = 605,604,562.78/x
  3. Step 3: Cross multiply
    1,007,360,748.70x = 1,390,261,276.95 × 605,604,562.78
  4. Step 4: Simplify right side
    1,007,360,748.70x = 841,948,572,777,269,248
  5. Step 5: Solve for x
    x = 841,948,572,777,269,248/1,007,360,748.70
  6. Step 6: Final answer
    x = 835,796,484.89

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Double scale
Find fourth proportional to 1,007,360,749.70, 1,390,261,278.33 and 605,604,563.78
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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.