Finding the Fourth Proportional to 890,349,125.60, 1,335,523,688.40 and 613,249,810.40
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Solution
The fourth proportional to 890,349,125.60, 1,335,523,688.40 and 613,249,810.40 is: 919,874,715.60
Step by Step Solution
- Step 1: Write the proportion equation
890,349,125.60 : 1,335,523,688.40 = 613,249,810.40 : x - Step 2: Convert to fraction form
890,349,125.60/1,335,523,688.40 = 613,249,810.40/x - Step 3: Cross multiply
890,349,125.60x = 1,335,523,688.40 × 613,249,810.40 - Step 4: Simplify right side
890,349,125.60x = 819,009,648,696,008,704 - Step 5: Solve for x
x = 819,009,648,696,008,704/890,349,125.60 - Step 6: Final answer
x = 919,874,715.60
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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.