Finding the Fourth Proportional to 918,316,347.50, 1,267,264,457.25 and 516,429,977.07
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Solution
The fourth proportional to 918,316,347.50, 1,267,264,457.25 and 516,429,977.07 is: 712,666,562.43
Step by Step Solution
- Step 1: Write the proportion equation
918,316,347.50 : 1,267,264,457.25 = 516,429,977.07 : x - Step 2: Convert to fraction form
918,316,347.50/1,267,264,457.25 = 516,429,977.07/x - Step 3: Cross multiply
918,316,347.50x = 1,267,264,457.25 × 516,429,977.07 - Step 4: Simplify right side
918,316,347.50x = 654,453,354,602,033,408 - Step 5: Solve for x
x = 654,453,354,602,033,408/918,316,347.50 - Step 6: Final answer
x = 712,666,562.43
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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.