Home / 1,166,615,441.70-1,609,897,459.02-645,076,840.74

Finding the Fourth Proportional to 1,166,615,441.70, 1,609,897,459.02 and 645,076,840.74

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Solution

The fourth proportional to 1,166,615,441.70, 1,609,897,459.02 and 645,076,840.74 is: 890,188,428.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,615,441.70 : 1,609,897,459.02 = 645,076,840.74 : x
  2. Step 2: Convert to fraction form
    1,166,615,441.70/1,609,897,459.02 = 645,076,840.74/x
  3. Step 3: Cross multiply
    1,166,615,441.70x = 1,609,897,459.02 × 645,076,840.74
  4. Step 4: Simplify right side
    1,166,615,441.70x = 1,038,507,566,779,975,168
  5. Step 5: Solve for x
    x = 1,038,507,566,779,975,168/1,166,615,441.70
  6. Step 6: Final answer
    x = 890,188,428.56

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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.