Home / 989,774,875.53-1,365,903,317.50-543,779,457.05

Finding the Fourth Proportional to 989,774,875.53, 1,365,903,317.50 and 543,779,457.05

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Solution

The fourth proportional to 989,774,875.53, 1,365,903,317.50 and 543,779,457.05 is: 750,423,336.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,774,875.53 : 1,365,903,317.50 = 543,779,457.05 : x
  2. Step 2: Convert to fraction form
    989,774,875.53/1,365,903,317.50 = 543,779,457.05/x
  3. Step 3: Cross multiply
    989,774,875.53x = 1,365,903,317.50 × 543,779,457.05
  4. Step 4: Simplify right side
    989,774,875.53x = 742,750,164,374,999,040
  5. Step 5: Solve for x
    x = 742,750,164,374,999,040/989,774,875.53
  6. Step 6: Final answer
    x = 750,423,336.39

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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.